Play the 13♭9 chord on guitar
The 13♭9 chord combines a thirteenth chord with a minor ninth, creating a rich palette of altered and unaltered tensions.
Chord composition
| I | III | ♭VII | ♭IX | XIII |
| Root | Major third | Minor seventh | Minor ninth | Major thirteenth |
| 0 | 4 | 10 | 13 | 21 |
Formula 1 - 3 - ♭7 - ♭9 - 13
Theory
The 13♭9 chord generally omits the fifth and eleventh. G13♭9 = G-B-F-A♭-E. The combination of minor ninth (altered tension) and major thirteenth (natural extension) creates complex harmonic color. Used in bebop to enrich dominant resolutions, particularly to minor chords.
Play the 13♭9 chord on the guitar
