The A♯ Half-Whole Diminished scale contains 8 notes: A♯, B, C♯, D, E, F, G, G♯.
The half-whole diminished scale alternates half steps and whole steps across eight notes. It supplies the flat ninth, sharp ninth, sharp eleventh and thirteenth over a dominant chord, which makes it the standard altered dominant sound in jazz.
A♯ Half-Whole Diminished is a scale, not a key. It has no key signature of its own — music that uses it is normally written in the key signature of its parent scale, with any extra accidentals added as they occur.
| Derece | Nota | Aralık | Semitones |
|---|---|---|---|
| 1 | A♯ | P1 | 0 |
| 2 | B | m2 | 1 |
| 3 | C♯ | m3 | 3 |
| 4 | D | M3 | 4 |
| 5 | E | TT | 6 |
| 6 | F | P5 | 7 |
| 7 | G | M6 | 9 |
| 8 | G♯ | m7 | 10 |
Every scale type that starts on A♯, for comparison.
The A♯ Half-Whole Diminished scale has 8 notes: A♯, B, C♯, D, E, F, G, G♯.
The A♯ Half-Whole Diminished scale follows the step pattern H–W–H–W–H–W–H–W, where H is a half step and W is a whole step.