Db7 chord on guitar

The Db dominant 7th chord, written Db7, has 4 notes: Db F Ab Cb. The root Db is also written C#, so C#7 is the same chord.

Db7×○4312
x43101
Db74×13141
x46464
Db76431112
986667

As tab, thick low E string first: x43101, x46464, 986667. Numbers in the dots are fingers: 1 index, 2 middle, 3 ring, 4 little, T thumb. × marks a muted string and ○ an open one.

NotesDb F Ab Cb
Formula1 3 5 b7
IntervalsRoot, Major 3rd, Perfect 5th, Minor 7th

About the Dominant 7th Chord

A dominant 7th chord adds the flat seventh to a major triad. It drives back to the home chord and is the base of the blues. More about the Dominant 7th Chord.

Keys with Db7

These keys have Db7 among their chords:

Scales to play over Db7

Each of these scales holds every note of the chord:

Dominant 7th Chord in other keys