F♯7♭13♯9 / G♭7♭13♯9

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

Press to hear the chord strummed low to high.

A dominant seventh with a sharp ninth and a flat thirteenth — two of the altered tensions at once, jagged and blues-tinged.

The notes

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

Interval formula

DegreeNoteWhat it is
1F♯root
♯9Asharp ninth
3A♯major third
5C♯perfect fifth
♭13Dflat 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

32
open position
231
open position
3fr1234
from fret 3
6fr2413
from fret 6

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

7♭13♯9 chords on every root