F phrygian b4 scale
The F phrygian b4 scale consists of the F (Perfect unison), Gb (Minor second), Ab (Minor third), Bbb (Major third), C (Perfect fifth), Db (Minor sixth) and Eb (Minor seventh) notes.

How to play the F phrygian b4 scale
- Find F (Root) on the piano keyboard
- Play Gb (Minor second) — 1 semitone above F
- Play Ab (Minor third) — 3 semitones above F
- Play Bbb (Major third) — 4 semitones above F
- Play C (Perfect fifth) — 7 semitones above F
- Play Db (Minor sixth) — 8 semitones above F
- Play Eb (Minor seventh) — 10 semitones above F
- Play all 7 notes in ascending order to perform the F phrygian b4 scale