Df Af Ef B f F Example 0.1(a). The

Fs/G f. Cs. /Df. Af. Ef B f F. Example 0.1(a). The circle of fifths can be interpreted .... “ordered interval” space. Example 0.3(b) is not available yet. 0. 0. 1. 2. 4. 5. 6.
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Example 0.1(a). The circle of fifths can be interpreted as depicting minimal voice-leadings between diatonic collections (major scales).

[Bf] [g]

[Fs] [D] [Bf] g

ds b

[e] c

gs e

Ef

B

G

[cs] a

f

fs d

[Cs] [as]

A

F

Df bf

[E]

C

Af

E cs

[G]

[Bf]

Fs

D

Bf

Example 0.1(b). The Tonnetz, shown here in its dual form. The graph displays some but not all of the efficient voice-leadings among the 24 familiar major and minor triads. Triads connected by horizontal lines share both “root” and “fifth,” and can be connected by voice-leading in which one note moves by one semitone. Triads along the NE/SW diagonal also share two notes and can be connected by single-semitone voice-leading. Triads along a NW/SE diagonal share two notes and can be connected by voice-leading in which one note moves by two semitones.

Example 0.1(c). Douthett and Steinbach’s “Cube Dance.”

Example 0.1(d). Douthett and Steinbach’s “Power Towers.”

B ac

E HM

E maj

E hm

B maj

A ac

{D↔Ds}

Fs maj

B HM

Fs hm

↔ Es }

D ac

Fs HM {E

A maj

E ac

G maj

{F↔Fs}

D maj

} Gs ↔ G

A hm

A HM

{ C maj

{A↔As}

{C↔Cs

}

G ac

Example 0.1(e). Dmitri Tymoczkoʼs “scale lattice.”

B hm maj = major ac = acoustic HM = harmonic major hm = harmonic minor

Example 0.2(a). Joe Straus’s graph of parsimonious connections among trichords

[048]

[036]

v 3 - v 2= v 2 - v 1 [024]

[012]

[000]

[001]

[003]

[026]

[004]

[027]

v 1 + v 2 + 12= 2v 3

[016]

[015]

[014]

[013]

[002]

[025]

[037]

[005]

[006]

v 1 = v2

Example 0.2(b). Clifton Callender’s continuous “trichord space.”

Figure 10: Trichord set-classes in 12-tone equal temperament in the fundamental region.

for all A! ∈ /A/ and B ! ∈ /B/.

Example 0.2(c). Joe Straus’s graph of parsimonious connections among tetrachords Example 0.2(d) is not available yet.

. I

.

vi

iii

.

.

V

IV

. . ii

.

vii

Example 0.2(e). Parsimonious voice-leading among diatonic triad-classes

0

11

10 9 8

7 y

6

5 4

3 2 1

0

0

1

2

3

4

5

6

7

8

x

Example 0.3(a). John Roeder’s “ordered interval” space. Example 0.3(b) is not available yet.

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