G# dorian b9 scale
The G# dorian b9 scale consists of the G# (Perfect unison), A (Minor second), B (Minor third), C# (Perfect fourth), D (Diminished fifth), F (Major sixth) and F# (Minor seventh) notes.

How to play the G# dorian b9 scale
- Find G# (Root) on the piano keyboard
- Play A (Minor second) — 1 semitone above G#
- Play B (Minor third) — 3 semitones above G#
- Play C# (Perfect fourth) — 5 semitones above G#
- Play D (Diminished fifth) — 6 semitones above G#
- Play F (Major sixth) — 9 semitones above G#
- Play F# (Minor seventh) — 10 semitones above G#
- Play all 7 notes in ascending order to perform the G# dorian b9 scale