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

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