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

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