Fdim7 chord on guitar

The F diminished 7th chord, written Fdim7, has 4 notes: F Ab Cb D.

Fdim7○○1423
120101
Fdim7123141
123131

As tab, thick low E string first: 120101, 123131. Numbers in the dots are fingers: 1 index, 2 middle, 3 ring, 4 little, T thumb. × marks a muted string and ○ an open one.

NotesF Ab Cb D
Formula1 b3 b5 6
IntervalsRoot, Minor 3rd, Tritone, Major 6th

About the Diminished 7th Chord

A diminished 7th chord stacks three minor thirds, a symmetric, tense chord that can resolve in four directions. More about the Diminished 7th Chord.

Diminished 7th Chord in other keys