CHORD · HALF-DIMINISHED 7TH

C#m7b5 (C#m7b5)

The C#m7b5 chord (C#m7b5) contains 4 notes: C#, E, G, B. Diminished triad plus a major third — appears on the ii of minor keys.

CDEFGABCDEFGABCC#

Notes

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Intervals from root

DegreeNoteIntervalQualityHalf steps
1C#1Perfect Unison0
2Eb3Minor 3rd3
3Gb5Diminished 5th6
4Bb7Minor 7th10

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