C#m9b5 Ukulele Chord
An extension of the half-diminished seventh chord with a ninth. A softer alternative to m7b5 thanks to the added ninth. Common in modern jazz as the ii chord in minor ii–V–i progressions.
Strings
0–3–0–2
Other names for the C#m9b5 chord
Other names: C# minor 9th flat 5, C#min9b5
Music theory name: minor ninth flat five chord
Common name: C# minor 9th flat 5 chord
Notes and intervals in the C#m9b5 chord
| Note | Interval |
|---|---|
| C# | Root |
| E | Minor 3rd |
| G | Diminished 5th |
| B | Minor 7th |
| D# | Major 9th |
All variations
Open
0–3–0–2
Fret 3
4–4–3–6
Fret 6
9–7–7–6
Fret 7
8–7–7–7