F♯13♭9 / G♭13♭9

6-note dominant 13th flat 9 on F♯ / G♭F♯, G, A♯, C♯, D♯, E.

Press to hear the chord strummed low to high.

A dominant thirteenth with a flat ninth — the sweet thirteenth over the biting flat nine, a hallmark of bebop turnarounds.

The notes

Pitches taken from the first fingering below — click any note to open its frequency page.

Interval formula

DegreeNoteWhat it is
1F♯root
♭9Gflat ninth
3A♯major third
5C♯perfect fifth
13D♯thirteenth
♭7Eflat seventh (dominant)

The formula reads in semitones above the root (F♯): 1, ♭9, 3, 5, 13, ♭7. A voicing may leave a tone out — often the fifth — but never adds one from outside this set.

Ukulele fingerings · 4

31
open position
3fr1214
from fret 3
6fr4211
from fret 6
9fr1243
from fret 9

Read a diagram top-down: the thick bar is the nut, dots are where to press (the number is which finger), means play the open string, means don't play it. A bar across strings is a barre.

Other F♯ / G♭ chords

13♭9 chords on every root