benjamin - 'pour les sixtes', an analysis
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Yale University Department of Music
"Pour les Sixtes": An AnalysisAuthor(s): William E. BenjaminReviewed work(s):Source: Journal of Music Theory, Vol. 22, No. 2 (Autumn, 1978), pp. 253-290Published by: Duke University Press on behalf of the Yale University Department of MusicStable URL: http://www.jstor.org/stable/843399 .
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"POUR LES SIXTES":AN ANALYSIS
William
E.
Benjamin
The
opening
notes
of
Debussy's
Etude
"pour
les
Sixtes"
can
only
be
ascribed to a
richly
historical
self-consciousness-a
sense
of
artistic
indebt-
edness
which
elicits
hommage,
and
an
awareness of one's
place
which
permits
the
open
and
confident
payment
of
hommage.
That
Debussy
was
supremely
aware of
his crucial
role
must be evident
to
any
experi-
enced
pianist
who
attempts
the
realization of
these
first
few
notes,
since
the
player
can
scarcely
have made
contact with
the
keyboard
before
being
led
back,
in
a rush of
tactile
memory,
to the
familiar
sounds
given
in
Example
1.
Debussy's
willingness
to
acknowledge
a
debt
to
the
man
whose
memory
he
apparently
intended to
honor
with these
Etudes,1
which
points
to
his
unconcern
about
being
mistaken
for
an
imitator,
is
drama-
tized
by
his choice
of
occasion
on
which to make
a
clean breast
of
it:
the
medium,
the
genre,
and the
very
title of
the work
could
hardly
fail to
quicken
an
audience's
associative
bent. The
confidence thus
bespoken
could,
of
course,
have been
misplaced,
but
does
not
appear
to have
been,
for
in
spite
of
its
thinly
veiled
allusions to
Op.
25,
No.
8
and
to
other
works
of
Chopin,
this
Etude,
when
but
loosely
scrutinized,
can
be
seen to
reveal a
world of
means and
purposes
which
lies
quite
outside
the
scope
of
those ancestor
works.2
253
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Vivace
mo/rto
leo0 o
mezzo voce
J"7-1
-E
l
Example
1
[
) b) c)
0-
vi
-
AL kv, -
VP
0|v
Example
2
a)
b) C)
I"
I
v
-06v
Example
3
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It
is
only
upon
closer
scrutiny, however,
that
a
determinant of
"pour
les Sixtes"
emerges
which
seals
the sense
one has
of its otherness
vis
d
vis
the
many
instances
in
nineteenth-century
piano
music
where
sixths
are
used
pervasively: i.e.,
a
concept
of
tetradic
consonance
within the
diatonic scale. A mere hint (and hardly an adequate portrayal) of the
far-reaching
effects of
this
concept
is
attained
by
comparing
Example
1
with the
opening
measures
of
"pour
les
Sixtes." If
Example
2a
is
acceptable
as
a
reduction of the
content of
Example
1,
Example
2b
may
perhaps
serve
as a
comparable,
if
slightly
simpler, representation
of
mm. 1-3 of
Debussy's
Etude.
Example
2c
is an even
simpler
sketch
of
mm.
1-4.3
Chopin's
initial
sonority-a
major-minor (hereafter:
"Mm")
7th
chord -resolves
directly
to
a
triad. Since
the 7th
chord is
represented
as
a
pair
of
sixths,
this
resolution
implies
a
progression
of
one of
these
sixths, played here
by
the left
hand,
to a fifth. In the case of
"pour
les
Sixtes,"
the
initial
harmony, pitch-class-identical
to that of
Op. 25,
No.
8,
proceeds
immediately
to
another Mm 7th
chord
and
proceeds
thence,
and
at a more
remote
level,
to
a tetrad
of
type
(0,3,6,9).
By
sticking
to a
progression
of
4-pitch-class (4-PC)
sonorities
at
all
but
the
most
foreground
levels,
Debussy
maintains the
integrity,
at all
of
these
levels,
of
each
of two
streams
of
imperfect
consonances. On
the
other
hand,
the
triadicity
of
Chopin's style
implies
that
at most
one
such
stratum will
endure
beyond
the
merest
evanescence.
A
direct
result
of
this
distinction is
the
sharp
textural
contrast between
the two
works:
Op. 25,
No.
8
makes obsessive
use
of
an
ornate,
essentially
conjunct
melody
in
sixths,
set
against
an
arpeggiated
accompaniment
comprising
sixths,
fifths,
and other
simultaneities,
which
only
occasionally,
though
at
crucial
spots,
achieves an
independent
sixth-stream of
its own:
by
contrast,
"pour
les
Sixtes"
makes
flexible,
indeed
functional,
use
of
a
range
of
textures,
each of
which
derives
from a
distinctive
way
of
dif-
ferentiating
between
two
underlying
PC
streams,
each
containing
a
pair
of
PC
lines
consistently separated by
IC's
3
or
4.4
We
may
begin
our
discussion of
Debussy's
Etude with an
overview
of
systematic
constraints which
govern
its
progress.
First
among
these
is
the
notion
of
tetradic
consonance,
which
entails the
reference,
at
some
level(s),
to
a
total-piece-partitioning
succession of
4-PC
harmonies.
Tetrads
may
appropriately
be
termed
consonant
to the
extent
that
they
do
not
result
from
the
melodico-rhythmic
elaboration of a
triadic
succession.
If
they
are
said to
result
from
such
a
succession,
it is
because
a
conceptual
3+1
partitioning
seems in
order,
on
the
basis
that
special
(i.e., more highly constrained) treatment of their allegedly extra-triadic
elements
elicits
it.
In
effect,
then,
tetradic
consonance is
justifiably
in-
voked when
the
singling
out
of
one
tetradic
constituent
(e.g.,
the 7th of
a
7th
chord)
as
hierarchically
inferior
does
not
enjoy
the
support
of
the
facts. None
of
this
in
any
way
enjoins
one
from
singling
out a
tetradic
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constitutent as
hierarchically superior, or,
in
other
words,
from
designat-
ing it,
on
some defensible
basis,
as
a
root. This sort
of
reverse
parti-
tioning
into 1+3
is
exactly
comparable
to
the 1+2
partitioning
we
customarily
inflict
upon
triads.
Consonant tetrads, therefore, are not supercharged triads. Still, they
may
be heard as
dependent
upon,
and
dissonant
to,
one
another
in
much
the
same
way
that a dominant
triad is heard in
relation
to
its
tonic
triad.
This
amounts to
saying
that there
may
be
a
hierarchy
in
the
flow of
consonant tetrads.
In
any
instance
of
tetradic
music,
our
discernment
of
this
hierarchy
and its exact
makeup
will rest on rhetorical
aspects:
that
is,
on
the
way
the music
emphasizes
certain
elements
and
downplays
others.
We
think
of
music
as more
systematic,
however,
when it
estab-
lishes some sort
of
correspondence
between
roles
rhetorically
expressed
and sonority types. In fact, it is this correspondence, however rough,
which
guides
us toward
positing
some hierarchical
organization
of
the music's elements
as
its
analysis.
Distinctions
between tetrads
can
be
made in three
stages.
The
first
stage
is
to
distinguish
different
tetrad
types,
or
4-PC
sets;
the second is
to
distinguish
transpositionally equivalent
tetrads;
the third
is
to dis-
tinguish
different
registral
orderings
of
the same tetrad. At
the
first
stage
one
distinguishes
between
the
tetrads
represented
in
Example
3a
(m.
13,
beat
1);
at the
second,
between those
represented
in
Example
3b (mm. 18-19); and, at the third, between the tetrads of Example 3c
(m.
12 and m.
19,
respectively).
Distinctions
among
tetrad
types
are
fundamental,
and,
in
this
music,
form the basis
for
choosing
an
underlying vocabulary.
Tetrads
which
may
be
partitioned
into two
IC3's,
two
IC4's,
or an
IC3
and an
IC4
figure
as
items
in
the
vocabulary;
others
do
not.
Any
tetrad
containing
still
another
IC3
or
IC4
in addition to those
which
partition
it
enjoys
a
privileged
status: it
may
be used as
a
harmony.
The
highest-level
har-
mony,
or
tonic
tetrad,
is
a
special
case
and will
be discussed
later.
Except
for the
tonic
tetrad,
the
harmonies
of
the
highest
middleground
level
are all
global
or
local dominants and are PC
sets of
types
(0,3,
6,8,)
and
(0,3,6,9).
Constituents
at the next
lower
level serve to
facili-
tate
the
progress
from dominant to dominant and are chosen
from
set-
classes
(0,2,5,8)
and
(0,3,5,8).s
The
latter,
in
turn,
are elaborated
by
harmonies
of what
may
be
called the lowest
middleground
tier(s);
i.e.,
those
of
types
(0,1,5,8)
and
(0,1,4,8).
At
the
foreground,
a
variety
of non-harmonies-tetrads
which
can be
partitioned
in the manner
described
above,
but
which
contain no additional
IC3
or
IC4-make
their
appearances.
Most
frequently
used
among
sonorities
of this last-
mentioned
sort are
those
from
set-class
(0,2,3,5)-m.
12,
10th
i-and
set-class
(0,1,3,5)-m.
26,
beat
3,
2nd
?,
and m.
28,
6th
1.
The
assignment
of
transpositionally
equivalent
tetrads to
various
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levels
of
a
hierarchy,
the
choice
of one
as
being
"more
in the
back-
ground"
than another
is an
exceedingly complex
matter.
Only
one
circumstance which
helps
to
clarify
this choice
will be
discussed
here;
namely,
when
it
is
simplified by considering
the PC
voice-leading
implied in a surface progression of parts.6 Example 13a presents a
PC
model
of
mm.
1-6 which
comprises
three
voice-leading
strata.
Each
of
the two
top
strata contains two
PC
voices or
lines,
while
the lowest stratum
presents
a bass PC
line
(not
to
be confused with
the lowest
part
in
the
music).
The
registral
representation
of
these
lines
is
essentially arbitrary,
but
it
has the virtue
of
displaying
PC
connections
as
pitch adjacencies.
The
distinguishing
feature
of
each
upper
stratum
in
Example
13a is that at a
middleground
level
(repre-
sented
by
white
noteheads)
its two lines are
PC-conjunct
and are
consistently separated
by
IC's 3 or 4.
If, however,
we restrict our con-
cern
to
the first
part
of
the
example (up
to and
including
the
harmony
labelled
D-flat:
IV),
we
observe the
use
of
black noteheads. Like
the
preceding
V,
this
IV is a "Mm
7th
chord,"
but
unlike
the
V,
it
is
parti-
tioned
by
voice-leading
into an
IC3
(middle stratum)
and
anIC2
(top
stra-
tum).
The
general principle
here
is this:
assuming
that
this sort of
model
of
PC
voice-leading
can be
produced,
any
tetrad
which
is
partitioned
so
as
to
generate
IC's other than 3 or 4
in either of
the
top
two strata is "more
in
the
foreground"
than a
transpositionally
equivalent
tetrad which
is
partitioned
into a
pair
of
3's,
a
pair
of
4's,
or a 3
and
a
4.
On the basis
of
this
principle
D-flat:
IV
is here
accorded
a
relatively
low-level
status.
In
triadic
tonal
music it is
customary
to
distinguish
the three
inversions
of
the triad
with
respect
to the
role
and
hierarchic
status
of
each.
It
would
also
be
possible
to
distinguish
the
registrally
partially
ordered
represen-
tations
of
tetrads
and to
speak
about
root-positions,
first
inversions,
and
so on.
If,
however,
tetrads
at
virtually
all
levels
are
obtained as
aggre-
gates
of
pairs
of
"sixths,"
as
seems
to be the
case
here,
only
two inver-
sions of the
primary tetrads, quasi-7th-chords,
are
accessible,
the
?
and
the
1.
It
appears
that
no
systematic
functional distinction between
these
registral arrangements
is
applied
in
"pour
les Sixtes". Root-
positions
of
"7th chords" are
accessible
under
the conditions which
apply
in
this
work
only
when
the
fifth PC
voice,
the structural
bass,
doubles
the root.
This sort
of
doubling
is sometimes
used to
signal
the
relatively
high-level
status of
a
tetrad
(as
in
mm. 5-6
and,
of
course,
in
mm.
57-58),
but
other
uses
are found
for
it as well. For
example,
the
fact that
the "D Mm
7th
chord" at m.
28,
beat 3 is in
root-position
heightens the interruptive effect of the G-flat root which follows it,
with the
result that
m.
29
sounds as
if
it
were
interrupting
the
progress
from
m. 28
to m.
30.
In the
world of
"pour
les
Sixtes,"
where five PC
lines-a
bass
and four
upper
voices-are
frequently
in
operation,
5-PC
sonorities
come
in
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handy
because
they
allow the
bass
PC's
of
its
own. When such
allowance
is
made,
telling
effects can
result,
such as those of mm.
46-50.
Occuring
at various
levels,
5-PC
sonorities result
from the melodic elaboration
of
tetrads of
type
(0,3,6,8)-normally,
dominants-through
the
replace-
ment in some octave of their individual roots (their 8's) by upper
diatonic
neighbors:
i.e., by
9's
or 10's. The net
results are
pentads
of
type
(0,3,6,8,9)-m.
45,
beat 3-or
of
type
(0,3,6,8,10)-mm.
49-50.
In a tetradic
system
pentads
can
justly
be
termed
"dissonant".
The role of
triads in this
system
is
manifold
and
particularly
interest-
ing.
These
figure
in
a
profusion
of
foreground
elaborations of harmonic
tetrads.
In this
connection
Example
4
(which
abstracts the
content
of
m.
35,
beats
1
and
2)
will
prove
instructive. The
underlying sonority
during
these
beats is
(D-flat,
F-flat, A-flat,
C-flat),
which
prepares,
and,
after prolonged interruption, resolves to (G-flat, B-flat, D-flat, F-flat)
in m. 37.
The latter
sonority
acts
as
an altered
dominant-of
the sort
popularized
as
a German
6th-leading
to F.
Example
4a shows the
fundamental
progression
(the
bass
line is
left
out)
in which a
sonority
of
type
(0,3,5,8)
is
used
to
prepare
one
of
type
(0,3,6,8).
The
elaboration
of the first of these
is what concerns us here.
Example
4b shows
how each
of the
dyads
which
partitions
(D-flat,
F-flat,
A-flat,
C-flat)
is
supplied
with an
upper
diatonic
neighbor,
the scale
of reference
being
C-flat
major.
The elaboration
results
in a
temporal
skewing-a
diagonalization
of
harmonic
(and
non-harmonic)
elements. The simultaneities which result
are
of
another
type
(0,3,5,8)
and
a diminished triad.
The
latter
is
then
further
elaborated
(Example
4c)
through neighbor
motion
in
the lower
parts
and a
borrowing
of
the
lower
dyad
(B-flat,
D-flat)
by
the
upper
voices.
This
produces
a
simultaneity
of
type
(0,1,3,5).
The
sense of
a
progression,
followed
by
a
recession,
of
dissonance
within
each
beat
of m. 35 is
unmistakeable,
and
obviously
reflects
the
foregoing
analysis.
The
correspondences
and
non-correspondences
to this wave-like
action
in
other
dimensions-those
of
density,
total
range,
and
dynamic
level-
make
for
a
highly
nuanced
composite
pattern
which seems
to demand
a
rubato for
its realization.
Example
4d summarizes
the
level
structure
of
the
fragment.
A second
foreground
role for
triads involves
their
use
"in
series" as
a
way
of
leavening
extended
passing progressions
(occasioned
by
octave-
transfers)
between
higher-level
tetrads.
Example
5
depicts
this
phenom-
enon as instanced
in
mm.
13-16,
where
(A-flat,
C,
E-flat,
G-flat)
is
connected
to
(B-flat,
D,
F,
A-flat).7
The primary means of
connection
in
Example
5
is
a
line of
I
chords
which could
have been
continued
without
a break
right up
to
the
goal
sonority.
Instead,
the
chain
is broken
at m.
14,
where
a
temporizing
impulse
generates
a
wavering
triad
series.
In
m. 15
the
chain is
resumed.
Particularly
fascinating
is
the
use
of
octave
doubling
within
these
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L b C)
d)
m.
34
35
37
Example
4
F..____---
riads
:W
--3,
U-,
----
-
. 1 14
-
15 16 17
L).
Example
5
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triads.
Such
doubling
is
necessary
to maintain
the continued flow of
sixths,
but
alternates between
two
pairs
of
parts, obviating
a sudden
and
unwanted sonic blandness.
Part alternation
of
octave
doubling
is
also a
feature of
the
upbeat segment
of seven 's which
precedes
beat 2 of
m. 8. In this passage there is a crescendo of sonic complexity, from
dyads through
triads to tetrads.
In
this
music,
the
primary
role
of
triads
on
a
larger
scale is
interrup-
tive. The
highest middleground
level
contains a
progression
of
tetrads;
triads introduced at the next-lower level
loosen
up
this
progression,
and,
by
filling
the
junctures
from
tetrad to
tetrad,
increase
its
temporal
extent. These triads are
obviously
not resolutions
of
the tetrads which
flow
into
them,
yet they appear
to absorb their
forerunners'
energies
and,
momentarily,
to
stay
the
forward-pressing impulse
symbolized
in
the tetrad progression. Striking examples are furnished by the G-flat
major
triads
in mm. 27
and
29. The
first
represents
the
beginning
of a
large-scale
triadic
prolongation
(mm.
27-36)
which
interrupts
the
tetradic
progress
of
the
middle section as a whole. From
m.
27 to
m. 34
the
PC
syntax
is
turned
inside-out,
in a
sense,
with
tetrads
engaged
in
the
melodic
expansion
of
the
G-flat triad. These tetrads are
organized
in an
energetic
wave which
spans
mm.
28-33,
reaching
a crest
in m.
32.
M.
29 acts
as a
pocket
of
placidity
within this
wave, mirroring
the
larger
effect of mm. 27-36 as a whole.
Ultimately, then, the whole middle section of "pour les Sixtes,"-
mm.
21-45-can be heard as an
interrupted
tetrad stream
which
bridges
(F, A, C,
E-flat)-mm.
21-22-
to
(B-flat,
E
double-flat,
F,
A-flat,
C-flat)
-m.
45.
The
whole
section, therefore,
is
spanned
by
a
quasi
V-I
progres-
sion.
The
interruption
of the
stream
is filled
by
a G-flat triad
prolon-
tion,
but is
really brought
about
by
a
discontinuity
which is inherent
in
the stream itself.
This
is
made clear in
Example
7 where the
connection
between the B-flat and
G-flat tetrads
(mm.
23
and
37, respectively)
is
seen to
be
suddenly
disjunct.
In
each
stratum
the
pair
of voices folds
over from bottom to
top:
hence,
in the middle stratum, the F-flat in the
harmony
at
m. 37 continues from the
F
in the
harmony
at
m.
23,
but
the D-flat
(m.
37,
middle
stratum,
upper
voice)
appears
to
emerge
from
nowhere.
The
same sort of
thing happens
in
the
upper
stratum.
Example
6
shows how this
problem
is dealt with at the
next-lower
level.
By
means of
a
chromatic
modification
(D-D-flat)
and a characteristic
shift
(indicative
of
transition
to a lower-level
event)
from
a
sixth to a
seventh,
a dominant of G-flat is
reached at
m.
26.
The
PC
counterpoint
then
enters a
triadic
pocket
with the "dissolution"
(rather
than the
"resolu-
tion")
of the middle stratum's sixth to an octave. The tonicization of
the
G-flat
triad,
which is re-executed
with
greater
care at
m.
33,
promotes
it
to a kind
of
free
zone
in
which
constraints
regulating
the
tetradic
mid-
dleground
are
temporarily
relaxed.
In
this tolerant
setting,
arpeggiations
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which
lead the
PC
lines
to their
new
points
of
departure
in
m.
37 are
easily
accomplished.
(See
Example
6).
Let us look
more
closely
at
Example
7
to
uncover further
conditions
which
shape
its
course.
Two of these conditions
are
particularly
obvious:
in the upper strata there is 1) uniformity of PC-conjunct motion, with
the
exception
of
the much-discussed
interruption
and of the final
anomalous
progression,
to be
discussed
below;
2)
a descent
without
reversal
in all
voices
(except
at the
point
of
discontinuity,
where the
question
of direction is
moot).
We have
already
alluded to a third condi-
tion-i.e.,
that
each
upper
stratum
uses
only
IC's
3
and
4 as
verticalities
-and we can
now
make
the observation
that the contents
of verticalities
directly
under
one another are
mutually
exclusive. In other
words,
the
upper
strata
never double
each
other and each successive tetrad is
partitioned by them without the aid of the bass. The bass, then, serves
to double
PC's or to
add
elements
of
its
own.
All of
the
above seems
simple enough
until
we realize that
we
have
left the term
"PC-conjunct" essentially
undefined. Its definition
is
implicit,
however,
in a condition which is
pertinent
to
our
inquiry
and
which we
have
tacitly
assumed
from the
start,
as evidenced
by
our use
of the
terms "tonic" and "dominant".
The
reference here is to the
"diatonic
condition,"
one
in
which each of the
12
PC's is
given
a
range
of
a
priori
significance by being
identified with
appropriate
members
of
appropriate "disposition-pairs" in selected major, major-minor, or
"modal" diatonic
scales.
Disposition-pairs
are ordered
pairs
of
adjacent
diatonic
scale-degrees
in
each
of which
the
first element
is
thought
of
as
disposed towards,
or
as
tending toward,
the second.
Questions
as to the
possible
bases
for
asserting
disposition-pairs
require
more
detailed answers than could
possibly
be
given
here,8
but it
should be
clear
that
the
model
of
Example
7
can
have
no
validity
unless
we
accept
their assertion as
legitimate.
Why
not?
Simply
because
there
is
no
reason to
place
our
trust
in
a
conjunction
of
two
PC's
whose
representations
in
the
music
may
be
separated
by
considerable stretches
of
foreground,
and to
say
that
one
"goes"
to the
other,
unless we
think
of
them in terms
of
their
prior
relationship
in
the diatonic
scale
or some
comparable
prior
construct.
We
should remember that
the
smooth
lines
of
Example
7
in
no
way
reflect the
registral
complexity
of
"pour
les
Sixtes".
They
are
not meant to
represent simplifications
of
an actual
pitch-counterpoint
into an
ideal
species-like pitch-counter-
point; instead,
they
are meant to
portray
the
underlying
PC counter-
point
we
call
harmony.
There
is
very
likely
no
line in
"pour
les
Sixtes"
which
"goes,"
as
does the
upper
line of
the
upper
stratum
in
Example
7,
from
some
E-flat
to the
E-flat
an
octave
lower.
We
should also
recall
that
in
conceiving
of
the tetrads
of
Example
7 as
consonant,
we
lose
any
basis
for
relying
on
an
obligatory
resolution
of dissonant
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2
rd
m. 23 26 27 35 37
--
•i7c
•
Example
6
-
sequence
pottern
'foldlng
o
v(-.r"
pattern
rEStrtement
m
1
4
5 51 23
37
38
44
47
54
57
Db: V
(I)
v
IV
II I
C
(7)
I
CV
V
(1)
F: II
I
B
1
)
I
6I
IEI
(I)
Example
7
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elements-7ths,
for
example-as
a
determinant
of
PC
succession.
Before
returning
to
Example 7,
let us see what
disposition-pairing
tells us
about
the
behavior
of
IC's
3
and
4 in
diatonic
contexts. The
major
scale is the
simplest,
but
what
follows
can be
adapted
to
other
instances of diatony. In what was apparently Debussy's concept of the
major
scale
(disposition-pairs
are
not
fixed for all
time),
the
primary
pairs
are 7
---
i 4
--
3,
and 2
--
i.
Three
other
pairs,
6 -+
5,
2
---
3,
and
5
-+6,
are
generally
secondary.
These
come
into
play
as
parallel
associates of
primary
pairs,
The
disposition
of
"sixths,"
therefore,
are as
given
in Table
I.
In
Table
1
a sixth is labelled
"inert" if
neither
of its
scale-degrees
is
the
first member of a
primary
pair.
If
one of its
scale-degrees
is the first
member
of a
primary pair
it
is
called
"weakly disposed," although 4/6
is regarded as stronger than 5/7 and 7/2. The pair 2/4, in which both
degrees
are
first members of
primary pairs,
has
the
strongest disposition
of
any
sixth.
The sixth
7/2
has
as its ultimate
disposition
the
identity
1/1.
To
maintain
the
fragile
world
of
"pour
les Sixtes"
1/1
is
simply
avoided at
higher
levels.
Table 2
reproduces
the
upper
strata
of
the
first
half of
Example
7 in
terms of
disposition
pairs.
What
emerges
from Table
2 is that
disposition-pairs
are not
used
in
the
purest
fashion;
indeed,
a
simple
diatonicism would be
incompatible
with the
goals
of
maintaining
a flow
of sixths and
keeping
the
upper
strata
separate
as to content. In addition to
following
their
dispositions,
the first members of
the
pairs
1)
may
be retained from one
tetrad
to the
next;
2)
may
be
chromatically
modified,
thus
entering
into
a new
scale
and
dispositional
relationship;
3)
may
progress
to
a
chromatic
modifica-
tion of the
scale-degree they
are
disposed
towards,
in which
case the
latter
may
be
thought
of
as
having
been elided
(it
is
possible,
for
example,
to
imagine
a D-flat
between the
E-flat
and the D-natural
at
the
beginning
of the
top
stratum's
upper
voice);
and
4)
may
be
enharmonically
reinterpreted.
Having
taken
pains
to
show
the
ultimate diatonic basis of this
music,
we can
now
deal with the
bass
stratum
of
Example
7 in
a
more
sum-
mary
fashion.
It
is,
au
fond,
a
diatonic-circle-of-fifths
segment:
C-F-
B-flat-E-flat-A-flat-D-flat.
In a
local
sense
the
opening
A-flat
is
a
mediant-associate
of
the
C-F
fifth;
in a
long-range
sense it is the left-
hand
jaw
of
a
dominant
vise which
grips
the
bass line
as
a
whole,
except
for the final
PC.
The G-flat which
appears
under the
tetrad
at
m.
37
is,
like the
initial
A-flat,
a mediant-associate
of the
following
(augmented)
fifth. It completes the D-flat major collection in the bass stratum and
permits
notes
5
through
8 in
that
stratum
to act as a
sequence
of
notes
1
through
4. The
strange pentad
which
appears
in m. 47-a
chromatic
substitute
for
a
more
normal
harmony
with
E-flat
as the
root-has its
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QN
TABLE 1
strongly disposed weakly disposed
i
--7
1
2-->3
-
4--3
6 -->
-
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TABLE
2
2
natural-1
2
---
1
4
"
3
4----
3
D-flat:
B-flat:
5
5
5
5
7
-
flat-7
7
-
flat-7
2
-+
1
4
----
3
C:
flat-6
----
5
7
flat-7
2
-----1
4
---
3
F:
5
5
7--
flat-7
Note:
the
numbers
above
represent
scale-degrees
in
spite
of
the
omission
of carats.
The
tonal
reinterpretation
of a
tetrad
is
represented
by
vertical
alignment.
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origins
in
the
logic
of the bass
line. With
E
double-flat
substituting
for
E-flat,
three
things
are
made
possible:
1)
a
pun,
the
interval B-flat-
E
double-flat
being
both
a
fifth and an
IC4
("sixth"); 2)
an
augmented
triad,
which ties in with other results
of
whole-tone-scale
patterning
in
the bass throughout the piece; and 3) an upper-leading-tone relationship
to
the
final bass-line
tonic,
which relates
enharmonically
to
the D-flat-
D-natural
and
C
sharp-D pairings
which
are
found
in
many places
(mm.
32-33,
m.
35,
m.
42).
If we
agree
to
understand all of
Example
7
(except
its
closing
chord)
as
a massive
dominant
prolongation representable by
a
copy
of either
its first
or
its
penultimate
chord-the two
being
identical-we
may
perhaps agree
to hear the
next-higher
level,
the
background,
as consist-
ing
of
that
copy
followed
by
the
closing chord,
in
the
manner
of
Example 8a. This seems at first a curious background to entertain, since
its
PC
voices all
move
by
"leap," contradicting
the
spirit
of the middle-
ground.
And
yet,
to
have
continued
in
that
spirit
by
allowing
the
dominant's tones to reach their
dispositional consequents
would
have
been
impossible:
we would have lost our final
tetrad
(Example
8b).
Nor
would
Example
8c
do;
its
upper
stratum
is
anti-dispositional.
It
might
occur to
someone
that
Example
8c is
"really" Example
8a with
a
content
exchange
between
strata,
as shown in
Example 8d,
but
it
seems
more
than
a little
forced to
"explain"
an
allegedly
basic
progres-
sion (8a) as a distortion (8d) of an incorrect one (8c).
What then are we to make
of
Example
8a?
At the risk of
appearing
to
be
resurrecting
and
trotting
into view much
nineteenth-century
theory,
grown
musty
with
neglect,
let us
try
out the notion
of the final
tetrad
as
neither
a
7th
chord
nor a
pair
of
sixths,
but as an
interlocking
of
D-flat
major
and
B-flat minor triads.
This
explanation
is
perhaps
not
entirely
removed from the
notion of
an
added-6th
chord,
but
is,
unlike
the
latter,
made to bear
the
weight
of
more
than a bit
of
foreground
fluff.
What we are
claiming,
in
effect,
is
that the
principles
which
govern
the
background differ essentially from those which determine the next-lower
level.
We
regard
the
tonic tetrad
as
having
two
potential
roots and as
being,
in
this
crucial
sense,
unlike
equivalent
tetrads
of
the
middle-
ground.
At
middleground
levels,
tetrads
of
type
(0,3,5,8)
have 5
as
their
only
possible
root
and act to
prepare
dominants
(e.g.,
the
principal
sonority
of mm.
10-11).
At the
background
level this tetrad
has two
possible
roots-the
5
and
the 8-and
it
falls to the
bass stratum
to
focus
on one of
these.
Consideration
of
Example
9 and of the
following
table
will
help
to
clarify
matters.
Example
9a
interprets
the
voice-leading
of
Example
8a as
deriving
from a
voice-leading
in which
there
are
no
leaps
(whole-note-
heads in
Example
9a).
This same
voice-leading
is
represented
in
letter
notation in the two
left
columns
of
Table 3.
There
are
two
aspects
of
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a)
b)
c)
d)
--
-1
Example
8
G)
b) C)
-p4
--i
c)-------
_
_
_,,0
I
,
;OS LP; IF.
a
. Lr
E
_93
Example
9
267
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TABLE
3
E
•-Rotation--
E-flat-
D-flat
B-flat
G-flat-
F
IC4
D-flat
)C3
B-flat scale-
-D-flat scale
A-flat-
A-flat
F
-
IC
)
IC2
IC3
-
C
B-flat
A-flat
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this
proto-voice-leading
which
require
clarification.
In the
first
place,
it
is
inherently
bimodal: the
upper
voice
of
the
lower stratum
of
Example
9a
implies
D-flat
major
while
the lower voice
represents
a
disposition-
pair
in B-flat
minor;
the
voices of the
upper
stratum
correspond
to
disposition-pairs in either D-flat major or B-flat minor. The result is that
the
progression
as a whole
can
be
decomposed
into
two
sub-progressions,
one
of
which leads to a D-flat
major
triad and the
other,
to a B-flat minor
triad.
This
decomposition
is shown in both
Example
9a and
Table
3.
The
addition of a
bass-stratum
A-flat-D-flat,
(as
in
Example
8a)
to
Example
9a
supports
the
D-flat
voice-leading
and causes
it
to dominate
the
progression
as a whole. The
second
aspect
of
Example
9a
which
deserves our attention
is
its failure to
maintain sixths in both
strata. In
the
second chord of the
example
there is
a seventh
in the
lower stratum.
In view of our earlier discussion it would seem that this result is
appropriate
to a
foreground
progression
and
not to the
highest
level. As
a
way
of
getting
around
this
problem,
the
background
transforms the
second chord of
Example
9a
by
vertical
rotation. This
will be
readily
observed
in
Table 3.
The
third
column in the
table
is
simply
the
second
column
rotated down one
position. Example
8a is the result of
this
rotation,
and,
as is
evident,
the
sixths
of
both strata are maintained.
Examples
9b
and 9c show what
happens
when
the
bass
underlying
the
upper
strata of
Example
8a
is
changed.
In
each case
one
of
the
upper
tones is
chromatically
modified. The
results in
both
cases
are
tonicizations
of
B-flat
triads
with
undertones
of
D-flat
major.
The
effect is
less
unitary
in
Examples
b and c than
it
is
in
Example
a,
which
is
to
say
that the
secondary
scale
(D-flat)
is
less
well
accommodated in
the
coupling.
The 7ths
against
the
B-flats
in the
bass
(Examples
b
and
c)
are
undoubtedly
largely
responsible
for
this,
but one
must also
consider
the
cross-relation
in
Example
b and the
weaker
bass motion in
Example
c.
So
far
we
have
only
a
hypothetical
explanation
of
Example
8a
in
Example 9a,
and two
contrived
examples
in 9b and
9c. Does the
music
somehow
validate our
understanding
of
Example 8a,
and
does it cor-
roborate this
validation
by
incorporating
tonicizations which
are the
possibilities
implied
in
that
understanding,
those
represented
in
Exam-
ples
9b and
9c? The answer to both
questions
is
yes.
The
background
progression
makes its surface
appearance
as the work's final
cadence
in
mm.
54-59,
where
it is
elaborated in a
singular
way.
As shown in
Exam-
ple
10,
the
component
sixths
of
the
dominant tetrad are
once
again
temporally
skewed and
presented
in
conjunction
with elements
"more
in the foreground." The bimodal implications of the remarkable bell-
chord in
mm.
55-56 are
especially
evident.
It is clear
that
A-natural acts
as
a
leading
tone
to
B-flat;
its
presence
supplies
the
context
of
the final
cadence
with the
only
disposition-pair
of
B-flat minor
missing
from
Example
8a.
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MI10
of
Bb
bO
Example
10
a)
b)
c)
mm.8-9
(V[)V.
VI
11
Example
11
-I-
p
Example
12
270
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The
tonicizations
of
B-flat
triads
corresponding
to
Examples
9b
and
9c occur in
the
music
at
mm.
8-9 and
13-16,
respectively.
These
tonicizations are of
only
local
significance,
as befits
the
inconclusive
nature of these
progressions.
In
the
first
case the tonicized
B-flat
root
(m. 9) yields immediately to one a fifth lower, and is thus absorbed in
the
prevailing
D-flat context.
Example
11
accounts in three
stages
for
the
way
in which
the content of
Example
9b
is elaborated in
these
measures. The
relationship
between
Example
9c and mm. 13-16
is
not
as
clear,
but
only
because the
music uses a
foreground
voice-leading
(without
rotation)
like
that
of
Example
9a.
It
is
important
to
under-
stand
Example
12,
which
shows this
voice-leading,
as a
tonicization of
a
B-flat
triad
against
the
sustained fifth of
a
D-flat
triad,
and
not as
a
pitch-contrapuntal
elaboration of the V4
of
E-flat
minor such
as one
might find in Mozart. The fact that B-flat is to be heard as a local tonic,
and
not
(except
in
retrospect
at
m.
19)
as a dominant
of
E-flat,
emerges
most
clearly
from its
prolongation
in mm.
16-18,
where
the
diatonic
content
is
best
described as B-flat
quasi-Mixolydian.
This
wavering
between
a
prevailing
D-flat
tonality
and a
potentially
emergent
B-flat
tonality
conditions
the
first 20
measures of
"pour
les
Sixtes" in
so
obvious a manner
that
it
would
have been
tempting
to
dismiss it
as a
conventional
opposition
of
"relative"
keys.
Its source
is
not
convention,
however,
and
must be
located at the
very
background
of the work itself.
There
is a
symmetry
to the
thematic
plan
of
"pour
les
Sixtes"
which
is
perhaps
better
described
as a
concentricity.
The
larger
scheme
is
obviously tripartite,
with
an
expository
section
(mm.
1-20),
a
digres-
sion
(mm.
21-45),
and a
reprise
(mm.
46-59).
Moving
inwards,
one
can
see
that
the
digression
follows
a
ternary
plan:
A
(mm.
21-26),
B
(mm.
27-37),
A'
(mm.
38-45).
The
middle
section
exhibits a
similar
design:
a
(mm.
27-30),
b
(mm.
31-33),
a'
(mm.
34-37).
To the
extent
that one
perceives
"the
form"
as
just
presented,
m. 32
becomes
its
very
center. Two
possible
observations then
gain
in
significance:
1)
that a
fairly
straightforward
case
can
be
made for
performing
the
downbeat of
m. 32
as
the
dynamic
(or
accentual)
climax of
the middle
section
and,
perhaps,
of
the
whole
piece;
and
2)
that
the
harmony
of
m.
32,
a
polar
(tritone)
substitute for the
dominant
of
D-flat,
while
unique
to
the mid-
dle
section,
points
back
to
the
beginning
dominant and
forward
to
mm.
48-50,
where it
reappears
as
a
quasi-domninant-9th
over
flat-II
before
proceeding
to
the'closing
dominant.
There
is,
however,
something
which
opposes
the
neat
3-partness
of
the
middle
section: the
music
at m. 37 seems
to want
to return
to
the
beginning,
a
beginning
which,
to
be
sure,
would find
itself
a whole-tone
lower.
This
"urge"
is
signalled
by
the
not-quite-obvious
reappearance
of
the
opening
motive on
the
last
eighth
of m.
37.
(A
pronounced
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ritard would create an
unmistakable
reference
to
m.
1.)
But this
is
only
the
tip
of an
iceberg
of
formal
ambiguity,
the true dimensions
of
which
are revealed
only
upon
further
study
of
Example
7. It shows that the
highest
middleground
level
progression underlying
mm. 37-54
is,
roughly speaking, a sequence of that which is the skeleton of mm. 1-23.
So the sense we
have
of
a
possible
thematic
return
at
m. 37 is the
result,
in
part,
of
an
extremely
deep
parallel
between
two
points
in the
music
(m.
1
and
m.
37).
A. The
Expository
Section
(mm.
1-20)
This section
is in
two
parts.
The
first
(mm. 1-6)
seems to
be
all of
a
piece;
in the
second
(mm.
7-20),
obvious and
not-so-obvious
features
conspire
to
suggest
a
major
division on the downbeat
of m.
16.
Example 13a is a model of PC counterpoint in mm. 1-6, which has
been alluded
to
previously.
The
symbols
used should now
be
familiar,
with
curved
arrows
signifying
disposition-pairing,
and
straight lines,
chro-
matic
modification.
Both notions are
applicable
at
various
levels.
These
various
levels are
indicated,
in the
simplest
possible way, by
a
hierarchy
of
note
values.
There
are
no
beams
or
slurs,
and
much
of
the other
paraphe-
nalia associated
with
Schenker-analysis
is
likewise
missing
for
the
reason
that
these
are
more
appropriate
to
a
model
of
multi-levelled
pitch-coun-
terpoint,
something
that
does not
concern
us
at the
moment.9
The bases for level-determination in a PC counterpoint, such as that
in
Example
13a,
should be
recalled
from the
previous
discussion:
the
primacy
of
tetrads
over
triads,
of "sixths" over
"sevenths,"
and of ascent
over
descent are
important
here.
Particularly
interesting
is
the
gradual
"loss of
depth"
in mm.
1-3,
after
which
there is a sudden
plunge
beneath
the surface.10
In
a conventional
D-flat
major context,
the
arrival
of the first
root-position
tonic
triad-considerably
delayed
and
harmonically
prepared-would
constitute
the
focal
point
of an initial
phrase.
Here
it
is the
last
outpost
on
a
cul-de-sac,
as
is evidenced
by
its
occurring on the "extra" beat of the only
I
measure in the immediate
environment.
Example
13b
shows
the actual
registral
disposition
of
the
upper
strata of
13a. It
suggests
that
this
disposition
may
have,
at
least,
three
functions:
one
is the establishment
of
long-range
identities
and
adja-
cencies
of
pitch;
the second
is the creation
of
large-scale
contours
which,
in
addition
to
establishing
their
own
dialect,
also
articulate,
at their
crests and
troughs
and other
junctures,
major
goals
along
the
music's
harmonic
path;
and
the third is
the
fashioning
of
correspondences
between the realms of
pitch
and
pitch-class,
so that
relatively
low-level
PC
connections
are
distinguished
in
yet
another
way
from those
at
higher
levels. Whereas
the
middle stratum
of
Example
13a
is
registrally
confined
in
Example
13b so
that its PC
voice-leading
is
interpreted
as a
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m. 1 2 3 4 5
D
V
IV
V
I
(I)
F:
m
C:
w)
I
b)
.1
.
.
v..
9,-,01
Example
13
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series of
pitch
adjacencies,
the
upper
stratum of 13a
migrates
through
much of
the
piano's range, executing
a
large
curve. Thus
the main
purpose
behind the
interpretation
of the middle
stratum seems
to
be
the establishment of
an
"obligatory
register"
in
which future
progress
on that stratum can be monitored (the first function mentioned above).
The
upper
stratum,
on
the
other
hand,
seems to
emphasize
the C in
m.
5,
this
being
the first time that a tetrad
root
has
appeared
in the
bass
part
(the
second
function).
A
particularly
fine
detail
is
the
registral
inter-
pretation
of
the
V-I
progression
in m. 3.
The simultaneous
appearances
of octave
shifts
in
both
strata,
which
give
the music
a
wayward
and
palpably problematic
quality
(enclosed
segment
in
Example
13b),
underline
the
atypical foreground
status of
this
progression
(the
third
function).
Other issues of interest in the first "phrase" are: 1) the motivic
independence
of
the
bass
part,
1)
the use
of
melodic
sequence
to articu-
late the succession
of
highest-middleground-level
tetrads,
and
3)
the
use
of diminution as a
summarizing technique.
The bass
part,
until it reaches the C
in m.
5,
is a
mere
extraction
from the
upper
strata
of
Example
13a.
It
pursues
its own
course,
alternating
IC's 3 and
2
to
produce
a chain with
overlapping
pentatonic
segments.
This chain is
artfully
broken at
m.
5
in
a
way
which leads to
its
being
taken
up
again,
in
transposition,
as the
broadly
conceived
top
voice of mm. 7-20 (Example 14).
There is an obvious motivic conformance
to mm. 1-2 in m.
4,
and
a
possible
conformance
to both
of
these
in m.
3.
Had m.
3
been written
as
Example
15a
suggests
it
might
have
been,
an
opening sequence
would
have
resulted,
and
this
would have
destroyed
the delicate effect
of
th'e
measure
as written.
On
the other
hand,
the
very real, though
hidden,
sequence
which connects
m.
4
to m.
5
should
not
be missed
(Example
15b).
Here
the
underlying
harmonies are
on the
same
level,
a common-
ality
which the
sequence
confirms.
As the bass
part
descends to an ornamental dominant at the end of
m. 5 in
preparation
for
the
recurrence
of m.
5
as m.
6,
the
upper
parts
engage
in a
preparatory gesture
which
compresses
into
one beat
a
cycle-
of-fifths
progression
of
IC3's,
reaching
back to the
A-natural/C
in m. 2
and the
D-natural/F
in
m.
4. These are
directly
tied
to
the
G-natural/
B-flat
in
mm.
5-6
(Example
16).
The
second
part
of
this
section
(mm.
7-20)
does not
easily
let
itself
be
understood.
As
a
first
step
it is
necessary
to
put
aside much
non-
sense
about
parallelism
and
"planing"
in
Impressionistic
music.
There is
only
so much "nonfunctional"
parallelism-i.e.,
parallelism
without PC-
contrapuntal
(harmonic)
significance-in
Debussy's music,
and
very
little
in the late works.
The
key
to the
passage
is
given
in
the
realization
that what
happens
in
mm. 7-20
represents
a lower level
of
happening
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penrato:c -
co.itinugtiorn
oo
choir
I
k
_.
,
[ missing
pentato
ic
chromatic
shift
presented
oas
m.
2
3
4
?
-
~m.
5-6
-
ec7dlntoher
chromatic
-
-
m.
7
8
10 12
16
-
18
18 19
Example
14
)
m. 1
possible
m.
3
•.-II
v
n.------
4' 1
l
missing
present
b)
m4
beco
me
s
At
i11
m.5•
01
nIK
Example
15
m.
2
m.
4
m. 5
mm.5-6
L e f
Example
16
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than that which
transpires
in mm.
1-6
or at the
beginning
of the
in
poco
agitato.
A
simple way
to
grasp
this would
be
to notice the obvious
harmonic connection between m.
6
and m. 21
and,
what
is
more
strik-
ing,
the
obligatory-registral
connection between
G-natural/B-flat
in
mm. 5-6, the G-flat/B-flat in mm. 19-20, and the F/A-natural in
mm.
21-22.
What mm.
7-20
"do,"
in
effect,
is to
transform.the
tetrad
(C, E,
G,
B-flat)
in
mm. 5-6-a dominant-into
the
lower-level
pre-
dominant
tetrad
(C, E-flat, G-flat,
B-flat)
in mm. 19-20.
The
essential
(PC)
voice-leading
of this
"phrase,"
as seen
in
Example
17,
has
nothing
to do with
parallelism
in
the
small;
instead
it is
an
example
of
paralellism
writ
large
and
very
much in
the
grand
tradition;
that
is to
say,
it
is
an
example
of
sequence
But
it
is
a PC
sequence
of
which
we
speak
and,
as
such,
is
only superficially
like the
pitch-inter-
vallic pattern-chains of tonal foregrounds. As such it may be expressed
in
pitch
relationships
which
are
quite
remote from
parallelism
of
any
sort. What makes
it a
sequence
are
the
motions of its PC
voices,
and
these
can
only
be
discerned
from
a theoretical
point
of view.
The
last
two tetrads
in
Example
17 are bracketed
because
they
actually belong
to the middle section.
They
are, however,
intimately
tied
to,
and
even
"implied"
by,
the content of mm. 7-20.
We
will con-
sider the
example
at its terminal extremes and
move inwards.
The last
two tetrads are a
high-middleground-level
sequel
to
the tetrad
at m.
5.
They execute a tonicization of B-flat major. This tonicization is pre-
pared
by
the
pair
of tetrads
at mm. 16 and
19,
the first of which
acts as
a dominant to
the second.
The
voice-leading
between
m.
16 and
m. 19
is the same as that
found in
Example 8a,
the
"voice-leading-by-rotation"
which is a feature
of
the
background progression.
Each PC
in the tetrad
at
m.
16
"goes"
to the next lower
PC in the tetrad
at
m.
19
(e.g.,
F-*E-flat,
A-flat-oG-flat, etc.;
see
Example
17).
The result
is
a
tonici-
zation
of the E-flat
minor triad within
the
tetrad
at
m.
19,
which is
what
makes
the latter sound
so different from
its
"inversion"
at m.
12.
The C in the tetrad at m. 19 is its other possible root, unrealized
here,
which
relates
the
harmony
as a
whole to its
higher-level
source,
the
tetrad at
m.
5.
An
"R" inside a curved arrow is
used in
this and
subsequent
examples
to
indicate
voice-leading by
rotation.
The
four
tetrads
beginning
with
the
one in
m. 16 constitute
a
high-
level
pattern
which
is now imitated in
its
entirety
in
the tetrads of
mm.
8, 9, 10,
and 12.
The imitation
is at an interval
of
10,
so
that
B-flat
is
approached
in
m.
23 whereas A-flat
is
approached
in m. 12. The
charm
of this
anticipatory
imitation
lies
partly
in our
changing
per-
spective
of the
harmony
in
m.
12.
At m. 12
it
sounds
like a dominant:
we
imagine
that
a
strong
motion
to D-flat
is in
prospect.
At m.
23,
however,
the
A-flat of m. 12 is
understood
in
retrospect
as
a
peaceful
quasi-Mixolydian
7 in relation
to
the
B-flat
of m.
23,
and,
perhaps,
as
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F
V
(D
Db
()
w
vi
Sb:
.,L
I"=
U12 V I
Mixolydian
mojor-
minor
Example
17
m.
8
9
10
12
16
19
Example
18
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a mediant-associate
of
the
C
(m.
5)
and
implied
F
(m. 21)
of
the bass
stratum.
The
juncture
between
the
two
pattern
statements-i.e.,
be-
tween m.
12 and
m.
16-is also
realized as a
voice-leading
by
rotation.
This allows us a more direct
experience
of
the "modal"
VII-I
relation-
ship, since the tetrad at m. 16 is, remarkably, a forerunner of that at
m.
23.
The
registral
interpretation
of
the
foregoing
is sketched
out
in
Example
18. The
upper
stratum
of
Example
17 is
shown in
Example
18
with
stems
descending,
and
the lower
stratum,
with
stems
ascending.
It is
immediately- apparent
that
the
sequential qualtities
of the
PC
model are
preserved
in the
interpretation.
Under the
first
curved
bracket
in
Example
18,
there is
a
descent
of both sixth-streams which
corresponds
to the first
pattern
statement in
Example
17.
This is
followed
by
a
general and pronounced ascent to the phrase's high-point, corresponding
to
the
juncture
between
pattern
statements and the
beginning
of
the
second
higher-level
statement.
Finally
there
is a
second,
expanded
descent,
corresponding
to
the second
pattern statement,
one
which
finds
its
way
to the
obligatory register
established
in
the first
phrase.
Two
masterly
details merit
mention.
Both derive from a
curious
anomaly
in
the
registration
of
the
A-flat/C
dyad
which
appears
in
the
upper
stratum
of
Example
17 at
m.
12.
In
Example
18 this
takes the
form
of a
widely-spaced
tenth instead of
a
sixth. As a
result,
A-flat
also
sounds like an
expression
of the bass
stratum,
and is
easily
associated
with the
low
C
in
m. 5.
(In
fact,
the
connection between the C
and the
A-flat
is made
explicit
in
the recall of the events
in
mm.
5-6 at the
end
of m.
12.)
We
have
already
noted
(see
Example
14)
how
the
long
descent
of
the
top-voice
in mm.
7-20
can be heard
as
a
continuation
of
the
bass
part
in
mm.
2-6 and as
returning
to
the
latter's
point
of
origin;
i.e.,
the
closing top-voice
interval of mm.
18-19,
B
double-flat-G-flat,
which
is
equivalent
to the A-natural-G-flat with
which
the
bass
part opens
in mm.
2-3. This return
happens
when a
truly
non-PC-functional tetrad
is inserted
on
the last
eighth
of
m. 18.
This
tetrad
originates
in a
strict
parallelism
with the
immediately succeeding
tetrad
(m. 19,
beat
1).
A
more
interesting
consequence
of
inserting
this tetrad
is
its relation
to
the
registration
of
the
tetrad
at
m.
12 where it
provides
the
second
basis
for that
registration.
In
Example
18
we can see
how
the
C at
m. 12
is
lifted above
the
descending
sixths of
the other
stratum.
This
enables
one to
hear a
melody
in sixths
(circled
in the
example)
which is
especially
prominent
in the
music. This
melody
is
an
augmentation
of the
opening
notes
of
the
piece.
The
insertion
of the
tetrad
at
m. 18
enables
the
bass
parts
to
echo
this
melody
as
the
section comes to
a close.
B.
The
Middle Section
Since
a
great
deal has
already
been
said
about
this stretch
of
music,
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the
following
remarks
are
confined to a
commentary
on a
couple
of
particulars
and
a
glance
at two
analytical
sketches.
Measure 26
poses
an
interesting
question:
why
is
the third
beat
is
not
a literal
transposition
(up
a
minor
3rd)
of
the
third beat in m.
25.
Perhaps we ought to rephrase the question and ask why the third beat
of
m. 26
is
more
interesting
than it would be as a
literal
transposition.
One
might
answer
as
follows: m.
27
is the
beginning
of the
long
triadic
interruption
which
comes to
an
end with the
definitive
resumption
of
tetradicity
in
m. 37.
This
makes m. 37 the
"real" continuation
of
m. 26.
By
giving
us the
high B-flat,
which is a
whole-tone too
high
with
respect
to m.
25,
and
by
delaying
the
appearance
of
an
exposed,
sud-
denly-leapt-to
A-flat until m.
37,
the musical surface reinforces the
deeper
link between
these measures.
If one follows the progress of the bass stratum at a high middleground
level-from
the
C
in
m.
5,
through
the A-flat
in
m.
13,
to the B-flat in
m.
23-one
notices
an
accumulation
of tones which
begins
to
suggest
one of the
whole-tone scales.
Indeed,
the
suppression
of
F,
which
seems
to be
called
for
but which is
apparently
replaced
by
G-flat
in
m.
22,
intensifies
this
suggestion. By
m. 27
it becomes clear that an
analogy
is
being
made to
the
(C,
A-flat)
dyadic
root-alternation of the first
section;
i.e.,
that the
new section is balanced
in
a
similar
way
on
(B-flat,
G-
flat).
Completion
of
the
whole-tone collection
and
proliferation
of
its
elements at the musical surface happen together in the bass part of
mm.
27-30,
where
the
arpeggiation-space
between
the
root
of
the
G-flat
triad
and
its third is filled
in with
a
scalar descent in whole-tones.
This
passage
and
the measures
which
immediately
succeed it are
summarized in
Example
19.
Unlike the
models
presented
so
far,
Example
19
is a
voice-leading graph
and uses the
concept
of
arpeggiation
to
account for
a
structural
upper
voice
(in
mm.
27-31).
We should
note
that this
passage
is
syntactically
"inside-out" and
that
tetrads serve to
elaborate a
G-flat tonic triad.
In
the
context
of
an
essential
triadicity
and over a
span
of
only
a few
measures,
arpeggiation
as the essential
content of
an
upper
voice
seems
sufficiently
non-arbitrary.
Particularly
notable
in
Example
19
is the
shift from
D-flat to D-natural in m. 28.
As
far
as the
structural
upper
voice
is
concerned,
this
is
the
hinge
on
which
the
progression
from
G-flat
harmony
(m.
27)
to
B-flat
harmony
(m. 31)
turns. This shift
is
answered
by
its
retrograde
in
mm.
32-33.
Example
20
is a
three-part
sketch of
the
transition to the
reprise
(mm.
40-46).
The
meaning
of
this
magnificent
passage
becomes clear
only
after
it is
over;
i.e.,
when the
bass reaches
E
double-flat in
m.
48
and the
goal-harmony
of
m.
46-48
is attained.
As shown
in
Example
20a,
the
high-level
progression
from
m.
45 to
m.
48,
in which a
chord
occurs
that
might
be labelled
"vii07 over
flat-II"
in
D-flat
and
is
preceded
by
a
"dominant-9th"
on
VI,
serves as a
model for an earlier
279
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8/19/2019 Benjamin - 'Pour Les Sixtes', An Analysis
29/39
Ob -15-T
-
-
0
I
whole
tonte
th-3pn
m
27
28
29
30
31
32 33
34
G6:
1
I
I
Example
19
a)
m
40
-41
42 45
46-48
7
b9
7
VJT7
Db =171
4
Example
20
280
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8/19/2019 Benjamin - 'Pour Les Sixtes', An Analysis
30/39
b)
5
(assuming Blbass)
4
0:
M•/
c)
Oti
-
Ob --88V
"
m.40
42 43
44
45
46
281
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8/19/2019 Benjamin - 'Pour Les Sixtes', An Analysis
31/39
progression,
in m.
42.
The
latter is the crucial event of
mm.
40-45;
it
is
a tonicization
of D
major
which
follows
upon
the
heels
of the toniciza-
tions
of B-flat
(m.
23),
G-flat
(m.
27),
and B-flat
(m.
40),
in all
of
which
the
local tonic is
used
as
a
bass
pedal.
The tonicization
of
D
major
implies the subsequent bass motion to D or, as the larger context would
have
it,
E
double-flat. The
disposition-pair
B-4A
(65
in
D)
in the
upper
voice
of the
upper
stratum in
Example
20a,
serves
to
motivate
the
enharmonically
equivalent-but
far-fetched in
a
voice-leading
sense-
C-flat
to B double-flat
of the
succeeding, higher-level prog