Ab blues scale
The Ab blues scale consists of the Ab (Perfect unison), B (Minor third), C# (Perfect fourth), D (Diminished fifth), Eb (Perfect fifth) and F# (Minor seventh) notes.

How to play the Ab blues scale
- Find Ab (Root) on the piano keyboard
- Play B (Minor third) — 3 semitones above Ab
- Play C# (Perfect fourth) — 5 semitones above Ab
- Play D (Diminished fifth) — 6 semitones above Ab
- Play Eb (Perfect fifth) — 7 semitones above Ab
- Play F# (Minor seventh) — 10 semitones above Ab
- Play all 6 notes in ascending order to perform the Ab blues scale