B#m7b5 is a half-diminished, spelled B#, D#, F# and A#. In Ukulele (low G) tuning (G3 C4 E4 A4) the easiest shape is 5666, which sits at fret 5 and spans 1 fret. 12 positions for it are shown below, from the nut up to fret 14.
Notes and intervals
Note
B#
D#
F#
A#
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.
5666sits at fret 5 and spans 1 fret3323sits at fret 2 and spans 1 fretx066sits at fret 6, needs a barre across 2 strings at fret 6, lets 1 string ring open and mutes 1 string5366sits at fret 3 and spans 3 frets5321sits at fret 1 and spans 4 frets81089sits at fret 8 and needs a barre across 3 strings at fret 8x01113sits at fret 11, spans 2 frets, lets 1 string ring open and mutes 1 string15151415sits at fret 14 and spans 1 fret5066sits at fret 5, spans 1 fret and lets 1 string ring open5363sits at fret 3 and needs a barre across 3 strings at fret 3536xsits at fret 3, spans 3 frets and mutes 1 string8066sits at fret 6, needs a barre across 2 strings at fret 6 and lets 1 string ring open
Keys B#m7b5 belongs to
B#m7b5 is diatonic to 8 of the 96 keys this app knows, playing a different role in each.