C♯alt (altered dominant) / D♭alt (altered dominant)

5-note altered dominant on C♯ / D♭C♯, F, G, G♯, B.

Press to hear the chord strummed low to high.

The altered dominant — chords-db voices it as a 7♯11 shape (third, raised eleventh and flat seventh). Maximum tension before the release.

The notes

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

Interval formula

DegreeNoteWhat it is
1C♯root
3Fmajor third
♯11Gsharp eleventh (tritone)
5G♯perfect fifth
♭7Bflat seventh (dominant)

The formula reads in semitones above the root (C♯): 1, 3, ♯11, 5, ♭7. A voicing may leave a tone out — often the fifth — but never adds one from outside this set.

Guitar fingerings · 4

4321
open position
3fr2341
from fret 3
4fr1234
from fret 4
8fr4312
from fret 8

Ukulele fingerings · 4

4
open position
3fr4312
from fret 3
6fr1243
from fret 6
7fr4132
from fret 7

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 C♯ / D♭ chords

alt (altered dominant) chords on every root