A#m7b5 is a half-diminished, spelled A#, C#, E and G#. In Open G tuning (D2 G2 D3 G3 B3 D4) the easiest shape is x3212x, which sits at fret 1, spans 2 frets and mutes 2 strings. 12 positions for it are shown below, from the nut up to fret 13.
Notes and intervals
Note
A#
C#
E
G#
Interval
1P
3m
5d
7m
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.
x3212xsits at fret 1, spans 2 frets and mutes 2 stringsx3665xsits at fret 3, spans 3 frets and mutes 2 strings866996sits at fret 6 and needs a barre across 5 strings at fret 6xx8656sits at fret 5, spans 3 frets and mutes 2 stringsx32326sits at fret 2, needs a barre across 3 strings at fret 2 and mutes 1 stringxx89911sits at fret 8, spans 3 frets and mutes 2 stringsx15141314xsits at fret 13, spans 2 frets and mutes 2 strings111311131111sits at fret 11 and needs a barre across 6 strings at fret 11x9111311xsits at fret 9, spans 4 frets and mutes 2 stringsx1232xsits at fret 1, spans 2 frets and mutes 2 strings896696sits at fret 6 and needs a barre across 4 strings at fret 68666xxsits at fret 6, needs a barre across 3 strings at fret 6 and mutes 2 strings
Keys A#m7b5 belongs to
A#m7b5 is diatonic to 8 of the 96 keys this app knows, playing a different role in each.