C#
G#
D#
A
E
D#
C#
G#
E
C#
A
D#
C#
G#
D#
E
A
E
G#
D#
C#
A
E
G#
D#
C#
G#
A
E
A
C#
G#
D#
A
E
D#
C#
G#
E
C#
A
D#
C#
G#
D#
E
A
E
G#
D#
C#
A
E
G#
D#
C#
G#
A
E
A
C#
G#
D#
A
E
D#
C#
G#
E
C#
C# Hirajoshi Scale notes: C# D# E G# A. Formula: 1 2 b3 5 b6. Chords that fit it: C#m, C#sus2, C#5.
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.