F#dim is a diminished, spelled F#, A and C. In DADGAD tuning (D2 A2 D3 G3 A3 D4) the easiest shape is 404504, which sits at fret 4, spans 1 fret and lets 2 strings ring open. 12 positions for it are shown below, from the nut up to fret 10.
Notes and intervals
Note
F#
A
C
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.
404504sits at fret 4, spans 1 fret and lets 2 strings ring open40423xsits at fret 2, spans 2 frets, lets 1 string ring open and mutes 1 string40453xsits at fret 3, spans 2 frets, lets 1 string ring open and mutes 1 stringx91011010sits at fret 9, spans 2 frets, lets 1 string ring open and mutes 1 stringxxx11010sits at fret 10, spans 1 fret, lets 1 string ring open and mutes 3 stringsx97507sits at fret 5, spans 4 frets, lets 1 string ring open and mutes 1 stringx9711010sits at fret 7, spans 4 frets, lets 1 string ring open and mutes 1 string43420xsits at fret 2, spans 2 frets, lets 1 string ring open and mutes 1 string40450xsits at fret 4, spans 1 fret, lets 2 strings ring open and mutes 1 string43450xsits at fret 3, spans 2 frets, lets 1 string ring open and mutes 1 string404204sits at fret 2, spans 2 frets and lets 2 strings ring openxx450xsits at fret 4, spans 1 fret, lets 1 string ring open and mutes 3 strings
Keys F#dim belongs to
F#dim is diatonic to 8 of the 96 keys this app knows, playing a different role in each.