A#m7b5 chord on guitar
A Sharp Half-Diminished, also written Bbm7b5. Notes: A#, C#, E and G#.
How to play A#m7b5
- Put your index finger on the 5th (A) string at fret 1 (A#).
- Put your middle finger on the 3rd (G) string at fret 1 (G#).
- Put your ring finger on the 4th (D) string at fret 2 (E).
- Put your pinky finger on the 2nd (B) string at fret 2 (C#).
- Don't play the low E and high E strings: skip them or mute them with a fretting finger.
- Strum from the A string down.
All 4 ways to play A#m7b5
Easiest first. Tap play to hear each one.Fret 1 position
EasyBarre at fret 2
MediumFret 5 position
MediumBarre at fret 9
HardNotes 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# guitar 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 guitar?
The easiest A#m7b5 is the "fret 1 position" shape. Put your index finger on the 5th (A) string at fret 1 (A#). Put your middle finger on the 3rd (G) string at fret 1 (G#). Put your ring finger on the 4th (D) string at fret 2 (E).
Is A#m7b5 hard to play on guitar?
No. The easiest version is rated easy and uses 4 fretted notes.
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.