D#dim is a diminished, spelled D#, F# and A. In Open G tuning (D2 G2 D3 G3 B3 D4) the easiest shape is x87877, which sits at fret 7, needs a barre across 4 strings at fret 7 and mutes 1 string. 12 positions for it are shown below, from the nut up to fret 11.
Notes and intervals
Note
D#
F#
A
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.
x87877sits at fret 7, needs a barre across 4 strings at fret 7 and mutes 1 stringxx1244sits at fret 1, spans 3 frets and mutes 2 stringsx24244sits at fret 2, needs a barre across 3 strings at fret 2 and mutes 1 stringx84847sits at fret 4, needs a barre across 3 strings at fret 4 and mutes 1 stringxx13111013sits at fret 10, spans 3 frets and mutes 2 strings13111311xxsits at fret 11, needs a barre across 3 strings at fret 11 and mutes 2 strings1242xxsits at fret 1, spans 3 frets and mutes 2 stringsx8787xsits at fret 7, needs a barre across 3 strings at fret 7 and mutes 2 strings124xxxsits at fret 1, spans 3 frets and mutes 3 stringsxxx877sits at fret 7, needs a barre across 2 strings at fret 7 and mutes 3 strings787877sits at fret 7 and needs a barre across 6 strings at fret 742424xsits at fret 2, needs a barre across 3 strings at fret 2 and mutes 1 string
Keys D#dim belongs to
D#dim is diatonic to 8 of the 96 keys this app knows, playing a different role in each.