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

How to play the B half diminished scale
- Find B (Root) on the piano keyboard
- Play C# (Major second) — 2 semitones above B
- Play D (Minor third) — 3 semitones above B
- Play E (Perfect fourth) — 5 semitones above B
- Play F (Diminished fifth) — 6 semitones above B
- Play G (Minor sixth) — 8 semitones above B
- Play A (Minor seventh) — 10 semitones above B
- Play all 7 notes in ascending order to perform the B half diminished scale