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

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