A#m7b5 chord on piano
A Sharp Half-Diminished, also written Bbm7b5. Notes: A#, C#, E and G#.
How to play A#m7b5
- Find A# just below middle C. That is the root.
- Add C#, E and G# above it, skipping the keys in between.
- Right hand fingering: 1-2-3-5. Left hand: 5-3-2-1.
Notes
A#m7b5 inversions
An inversion moves the lowest note up an octave. Same notes, smoother jumps between chords.
Root position
A# · C# · E · G#1st inversion
C# · E · G# · A#2nd inversion
E · G# · A# · C#3rd inversion
G# · A# · C# · ENotes and theory
The half-diminished chord (minor seventh flat five) is the ii chord of a minor key and a key part of minor ii-V-i progressions in jazz. The formula is 1 b3 b5 b7, and you will also see it written as A#ø and A#m7(b5).
Keys that use A#m7b5
More A# chords
All A# piano chordshalf-diminished chords in every key
Questions
What notes are in the A#m7b5 chord?
A#m7b5 (A sharp half-diminished) is made of four notes: A# (root), C# (minor third), E (diminished fifth) and G# (minor seventh).
How do you play A#m7b5 on piano?
Play A#, C#, E and G# together. With the right hand use fingers 1-2-3-5; with the left hand use 5-3-2-1.
What are the inversions of A#m7b5?
Root position: A# C# E G#. 1st inversion: C# E G# A#. 2nd inversion: E G# A# C#. 3rd inversion: G# A# C# E.
What key is A#m7b5 in?
A#m7b5 belongs to 2 keys: B major (as the vii°ø7 chord) and G sharp minor (as the ii°ø7 chord).
What does a half-diminished chord sound like?
The half-diminished chord (minor seventh flat five) is the ii chord of a minor key and a key part of minor ii-V-i progressions in jazz.