Ddim is a diminished, spelled D, F and Ab. In Open G tuning (D2 G2 D3 G3 B3 D4) the easiest shape is 013130, which sits at fret 1, needs a barre across 3 strings at fret 1 and lets 2 strings ring open. 12 positions for it are shown below, from the nut up to fret 13.
Notes and intervals
Note
D
F
Ab
Interval
1P
3m
5d
12 ways to play it
Ordered by how hard they are to fret, easiest first, one per position on the neck. Fret numbers are relative to the position marked beside each grid.
013130sits at fret 1, needs a barre across 3 strings at fret 1 and lets 2 strings ring open070766sits at fret 6, needs a barre across 2 strings at fret 6 and lets 2 strings ring open01001090sits at fret 9, spans 1 fret and lets 3 strings ring open0701090sits at fret 7, spans 3 frets and lets 3 strings ring open0100xxxsits at fret 10, needs no stretch at all, lets 2 strings ring open and mutes 3 strings0131513150sits at fret 13, needs a barre across 3 strings at fret 13 and lets 2 strings ring open073736sits at fret 3, needs a barre across 3 strings at fret 3 and lets 1 string ring openxx12131515sits at fret 12, spans 3 frets and mutes 2 strings010133sits at fret 1, spans 2 frets and lets 2 strings ring open013133sits at fret 1, needs a barre across 3 strings at fret 1 and lets 1 string ring open01313xsits at fret 1, needs a barre across 3 strings at fret 1, lets 1 string ring open and mutes 1 stringxx0133sits at fret 1, spans 2 frets, lets 1 string ring open and mutes 2 strings
Keys Ddim belongs to
Ddim is diatonic to 8 of the 96 keys this app knows, playing a different role in each.