Tone Clock · Set classes · 4 notes
Two shapes, each the other’s mirror
Interval content
| ic1 | ic2 | ic3 | ic4 | ic5 | ic6 |
|---|---|---|---|---|---|
| 1 | 1 | 2 | 1 | 0 | 1 |
Every set in the class holds one semitone, one whole tone, two minor thirds, one major third, no fourths and one tritone.
Common tones
| T0 | T1 | T2 | T3 | T4 | T5 | T6 | T7 | T8 | T9 | T10 | T11 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 4 | 1 | 1 | 2 | 1 | 0 | 2 | 0 | 1 | 2 | 1 | 1 |
Notes a set keeps when transposed by n.
| T0I | T1I | T2I | T3I | T4I | T5I | T6I | T7I | T8I | T9I | T10I | T11I |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2 | 0 | 2 | 2 | 1 | 2 | 3 | 0 | 2 | 2 | 0 | 0 |
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.
0236
- 0236C D D# F#
- 1347C# D# E G
- 2458D E F G#
- 3569D# F F# A
- 467tE F# G Bb
- 578eF G G# B
- 0689F# G# A C
- 179tG A Bb C#
- 28teG# Bb B D
- 039eA B C D#
- 014tBb C C# E
- 125eB C# D F