F#dim is a diminished, spelled F#, A and C. In Ukulele (low G) tuning (G3 C4 E4 A4) the easiest shape is x020, which sits at fret 2, needs no stretch at all, lets 2 strings ring open and mutes 1 string. 12 positions for it are shown below, from the nut up to fret 14.
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.
x020sits at fret 2, needs no stretch at all, lets 2 strings ring open and mutes 1 stringx650sits at fret 5, spans 1 fret, lets 1 string ring open and mutes 1 stringx680sits at fret 6, spans 2 frets, lets 1 string ring open and mutes 1 stringx653sits at fret 3, spans 3 frets and mutes 1 string11080sits at fret 8, spans 3 frets and lets 2 strings ring open110140sits at fret 11, spans 3 frets and lets 2 strings ring openx0140sits at fret 14, needs no stretch at all, lets 2 strings ring open and mutes 1 string1401412sits at fret 12, spans 2 frets and lets 1 string ring open2020sits at fret 2, needs no stretch at all and lets 2 strings ring open2023sits at fret 2, spans 1 fret and lets 1 string ring open202xsits at fret 2, needs no stretch at all, lets 1 string ring open and mutes 1 string5650sits at fret 5, needs a barre across 3 strings at fret 5 and lets 1 string ring open
Keys F#dim belongs to
F#dim is diatonic to 8 of the 96 keys this app knows, playing a different role in each.