Tone Clock · Set classes · 7 notes
Two shapes, each the other’s mirror
Interval content
| ic1 | ic2 | ic3 | ic4 | ic5 | ic6 |
|---|---|---|---|---|---|
| 5 | 4 | 4 | 4 | 3 | 1 |
Every set in the class holds five semitones, four whole tones, four minor thirds, four major thirds, three fourths and one tritone.
Common tones
| T0 | T1 | T2 | T3 | T4 | T5 | T6 | T7 | T8 | T9 | T10 | T11 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 7 | 5 | 4 | 4 | 4 | 3 | 2 | 3 | 4 | 4 | 4 | 5 |
Notes a set keeps when transposed by n.
| T0I | T1I | T2I | T3I | T4I | T5I | T6I | T7I | T8I | T9I | T10I | T11I |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 3 | 4 | 3 | 4 | 6 | 6 | 5 | 4 | 5 | 4 | 3 | 2 |
Notes a set keeps when inverted about n.
Its 24 sets
Set theory treats D# and Eb as one pitch class; the names under each set use one fixed spelling, sharps except Bb.
0123458
- 0123458C C# D D# E F G#
- 1234569C# D D# E F F# A
- 234567tD D# E F F# G Bb
- 345678eD# E F F# G G# B
- 0456789E F F# G G# A C
- 156789tF F# G G# A Bb C#
- 26789teF# G G# A Bb B D
- 03789teG G# A Bb B C D#
- 01489teG# A Bb B C C# E
- 01259teA Bb B C C# D F
- 01236teBb B C C# D D# F#
- 012347eB C C# D D# E G
0345678
Relations
- Complement
- 5-3 01245
- Z-partner
- none: no other class has this interval vector
- Symmetry
- none: only T0 maps it onto itself
- Inside it
2 notes: 2-1 ×5 · 2-2 ×4 · 2-3 ×4 · 2-4 ×4 · 2-5 ×3 · 2-6
3 notes: 3-1 ×4 · 3-2 ×6 · 3-3 ×5 · 3-4 ×4 · 3-5 ×2 · 3-6 ×2 · 3-7 ×3 · 3-8 ×2 · 3-9 · 3-10 · 3-11 ×4 · 3-12
4 notes: 4-1 ×3 · 4-2 ×4 · 4-3 ×2 · 4-4 ×3 · 4-5 ×2 · 4-6 · 4-7 · 4-10 · 4-11 ×2 · 4-12 · 4-13 · 4-14 ×2 · 4-17 · 4-18 · 4-19 ×3 · 4-20 · 4-22 · 4-24 · 4-26 · 4-27 · 4-Z29 ×2
5 notes: 5-1 ×2 · 5-2 ×2 · 5-3 ×2 · 5-4 · 5-5 ×2 · 5-11 · 5-13 ×2 · 5-16 · 5-Z17 · 5-21 · 5-25 · 5-26 · 5-27 · 5-Z36 · 5-Z37 · 5-Z38
- Around it
- 8-2 · 8-3 · 8-4 · 8-7 · 8-11 · and 13 larger classes