Ukulele · Half-diminished chord

A#m7b5A# Half-diminished

Key: B Major
Easy
Open chord

A#m7b5 is the A# half-diminished chord on ukulele, made of the notes A# · C# · E · G#.

Position 1 of 2Main

Notes

A#
C#
E
G#

Structure

1
♭3
♭5
♭7

Sound: Half-diminished (m7♭5); Dark, jazzy
Harmonic function: Dominant; Creates tension that resolves to the tonic.

Harmonic field of B Major

Degree	Chord	Function
I	B	Tonic
ii	C#m	Subdominant
iii	D#m	Tonic relative
IV	E	Subdominant
V	F#	Dominant
vi	G#m	Tonic relative
vii°	A#dim	Dominant

How to play

1Barre fret 1 with your index finger, from string 4 to string 3.
2Place your middle finger on fret 1 of string 1.
3Let string 2 ring open.
4Strum all the strings.