|4||x or Ab||6th fretfr.||optionalopt.|
Guitar chords in the key of D major:
Chord Ddim (4th fret) notes: (Ab), D, F and Ab. You must leave out the 6th and 5th strings.
The note Ab on the fourth string is not required, but can be played on the 6th fret if needed.
Ddim - D diminished triad guitar chord's alternative names: D°, D-5, Dm-5, and Ddim. See also: Ddim7 and Dm7b5.
1(D), b3(F), b5(G#/Ab).