A#m7♭5 chord on 4-String Bass – Low B
in Low B (B-E-A-D) tuning
A#m7♭5
Half-Diminished
Notes:A# · C# · E · G#
Piano Left hand Right hand
Fingerings (6)
A#m7♭5 shapes as text
| Shape | Frets | Fingers | Notes | Difficulty |
|---|---|---|---|---|
| 2 4 1 2 | 2 4 1 3 | C# G# A# E | medium | |
| 5 6 4 6 | 2 3 1 4 | E A# C# G# | medium | |
| 9 9 7 8 | 3 4 1 2 | G# C# E A# | medium | |
| 11 12 11 11 | 1 2 1 1 | A# E G# C# | easy · barre on fret 11 | |
| 5 4 4 8 | 3 1 2 4 | E G# C# A# | hard | |
| 11 0 11 11 | 1 – 2 3 | A# E G# C# | easy |
The A#m7♭5 chord (Half-Diminished) is built from the notes A#, C#, E, G#. Below are playable fingerings for 4-String Bass – Low B generated for your selected tuning, ordered from open-position shapes up the neck. Tap a diagram to hear it, or switch to the piano view to see the same harmony on keys.
How the A#m7♭5 chord is built
Formula: 1 · ♭3 · ♭5 · ♭7
| Degree | Semitones | Note |
|---|---|---|
| 1 | 0 | A# |
| ♭3 | 3 | C# |
| ♭5 | 6 | E |
| ♭7 | 10 | G# |
More A# chords
Other roots
See A#m7♭5 in another tuning
What notes make up the A#m7♭5 chord?
A#m7♭5 is a Half-Diminished chord built from the notes A#, C#, E, G#.
How do I read the diagram?
Strings run left to right from the lowest to the first string; the numbers show which finger presses each fret. An ○ marks an open string, an ✕ marks a muted one.