C#7b9#5 Ukulele Chord
An intensely tense altered chord combining an augmented fifth with a flat ninth. Used in jazz for dramatic resolution, typically to a minor chord a fourth up.
Strings
2–2–1–2
Other names for the C#7b9#5 chord
Other names: C# 7th flat 9 sharp 5
Music theory name: seventh flat nine augmented fifth chord
Common name: C# 7b9#5 chord
Notes and intervals in the C#7b9#5 chord
| Note | Interval |
|---|---|
| C# | Root |
| E# | Major 3rd |
| A | Augmented 5th |
| B | Minor 7th |
| D | Minor 9th |
All variations
Open
2–2–1–2
Fret 4
4–5–5–5
Fret 7
7–9–7–8
Fret 10
10–11–10–12