F
Db
Ab
C
G
F
C
Db
Ab
Db
F
C
G
Db
Ab
G
F
C
Ab
F
Db
G
F
C
G
Ab
Db
Ab
C
G
F
Db
Ab
C
G
F
C
Db
Ab
Db
F
C
G
Db
Ab
G
F
C
Ab
F
Db
G
F
C
G
Ab
Db
Ab
C
G
F
Db
Ab
C
G
F
C
Db
Ab
Db
F Hirajoshi Scale notes: F G Ab C Db. Formula: 1 2 b3 5 b6. Chords that fit it: Fm, Fsus2, F5.
Hirajoshi is a five-note Japanese scale: 1 2 b3 5 b6. Two half steps, 2 to b3 and 5 to b6, give it a plaintive sound that recalls the koto. It works like a minor pentatonic with a different color, so rock and metal players use it for an instant Japanese flavor.