A# double harmonic scale
The A# double harmonic scale consists of the A# (Perfect unison), B (Minor second), D (Major third), D# (Perfect fourth), F (Perfect fifth), F# (Minor sixth) and A (Major seventh) notes.

How to play the A# double harmonic scale
- Find A# (Root) on the piano keyboard
- Play B (Minor second) — 1 semitone above A#
- Play D (Major third) — 4 semitones above A#
- Play D# (Perfect fourth) — 5 semitones above A#
- Play F (Perfect fifth) — 7 semitones above A#
- Play F# (Minor sixth) — 8 semitones above A#
- Play A (Major seventh) — 11 semitones above A#
- Play all 7 notes in ascending order to perform the A# double harmonic scale