Tone Clock · Set classes · 7 notes
Two shapes, each the other’s mirror
Interval content
| ic1 | ic2 | ic3 | ic4 | ic5 | ic6 |
|---|---|---|---|---|---|
| 3 | 4 | 4 | 4 | 5 | 1 |
Every set in the class holds three semitones, four whole tones, four minor thirds, four major thirds, five fourths and one tritone.
Common tones
| T0 | T1 | T2 | T3 | T4 | T5 | T6 | T7 | T8 | T9 | T10 | T11 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 7 | 3 | 4 | 4 | 4 | 5 | 2 | 5 | 4 | 4 | 4 | 3 |
Notes a set keeps when transposed by n.
| T0I | T1I | T2I | T3I | T4I | T5I | T6I | T7I | T8I | T9I | T10I | T11I |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 3 | 4 | 6 | 2 | 5 | 4 | 5 | 4 | 3 | 6 | 3 | 4 |
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.
0124579
- 0124579C C# D E F G A
- 123568tC# D D# F F# G# Bb
- 234679eD D# E F# G A B
- 034578tD# E F G G# Bb C
- 145689eE F F# G# A B C#
- 025679tF F# G A Bb C D
- 13678teF# G G# Bb B C# D#
- 024789eG G# A B C D E
- 013589tG# A Bb C C# D# F
- 12469teA Bb B C# D E F#
- 02357teBb B C D D# F G
- 013468eB C C# D# E F# G#
0245789
Relations
- Complement
- 5-27 01358
- Z-partner
- none: no other class has this interval vector
- Symmetry
- none: only T0 maps it onto itself
- Inside it
2 notes: 2-1 ×3 · 2-2 ×4 · 2-3 ×4 · 2-4 ×4 · 2-5 ×5 · 2-6
3 notes: 3-1 · 3-2 ×3 · 3-3 ×4 · 3-4 ×4 · 3-5 ×2 · 3-6 ×2 · 3-7 ×6 · 3-8 ×2 · 3-9 ×4 · 3-10 · 3-11 ×5 · 3-12
4 notes: 4-2 · 4-3 · 4-4 ×2 · 4-6 · 4-7 · 4-10 · 4-11 ×2 · 4-12 · 4-13 · 4-14 ×3 · 4-Z15 ×2 · 4-16 ×2 · 4-17 · 4-18 · 4-19 ×3 · 4-20 · 4-22 ×4 · 4-23 ×3 · 4-24 · 4-26 ×2 · 4-27
5 notes: 5-3 · 5-10 · 5-11 · 5-14 ×2 · 5-Z17 · 5-Z18 · 5-21 · 5-23 ×2 · 5-26 · 5-27 ×2 · 5-29 · 5-30 ×2 · 5-32 · 5-35 ×2 · 5-Z36 · 5-Z37
- Around it
- 8-11 · 8-14 · 8-20 · 8-22 · 8-26 · and 13 larger classes