B hirajoshi scale
The B hirajoshi scale consists of the B (Perfect unison), D# (Major third), F (Diminished fifth), F# (Perfect fifth) and A# (Major seventh) notes.

How to play the B hirajoshi scale
- Find B (Root) on the piano keyboard
- Play D# (Major third) — 4 semitones above B
- Play F (Diminished fifth) — 6 semitones above B
- Play F# (Perfect fifth) — 7 semitones above B
- Play A# (Major seventh) — 11 semitones above B
- Play all 5 notes in ascending order to perform the B hirajoshi scale