C#m7(b5) chord on Piano, Guitar, and Ukulele

The C-sharp half-diminished seventh chord (abbreviated "C#m7(b5) chord") is a four-note chord consisting of the notes C♯, E, G, and B. The chord is formed by lowering the fifth of a C-sharp minor seventh chord a half step.

Name

C-sharp half-diminished seventh chord

Synonyms

C-sharp half-diminished chord C-sharp minor seventh flat five chord

Notes

C♯ E G B

Intervals

1 ♭3 ♭5 ♭7

Chord symbol

C♯m^7(b5)

Alternative symbols

C♯^ø C♯^ø7 C♯m^7b5 C♯^–7(b5) C♯mi^7(b5) C♯min^7(b5)

Type

Tetrad (four-note chord)

C#m7(b5) chord

C#m7(b5) chord on piano

C#m7(b5) chord on guitar

C#m7(b5) chord on ukulele

C#m7(b5) chord on the staff