How to play C7b9: a dominant 7th flat 9 built on C, with 1 voicing, the notes, and the intervals.
The first diagram is a common voicing: played at the first few frets. An X above a string means don't play it; an O means play it open.
The same chord in other positions on the neck: movable shapes transposed to C. Open any of them in the Diagram Maker below to adjust the fingering.
| Note | C | E | Bb | Db |
|---|---|---|---|---|
| Interval | R | 3 | b7 | b9 |
C7b9 is a dominant 7th flat 9 with C as its root. The full theoretical spelling is C, E, G, Bb, Db. This voicing omits the 5th, the tone guitarists drop first when fitting a chord onto six strings.
All tools are free with no download. Customize the fingering, print it, or drop it straight into a chart.
🤲 Play C7b9 a way we don't show? Suggest your voicing and it may join the library (with a thank-you in your inbox).
