A sharp half-diminished piano chord - A#m7b5

The A sharp half-diminished chord is a 4-note chord consisting of the notes A#, C#, E and G#.
You can see these notes highlighted in the interactive piano chart below.
The chord itself is often abbreviated as A#m7b5.

Interactive piano diagram for the A sharp half-diminished chord

Piano keyboard displaying the A sharp half-diminished chord with the notes A#BbFbEC#DbG#Ab

Reduced chords

Chords that are a subset of A#m7b5. These contain less notes but all of them are included in A#m7b5.

Scales with A#m7b5

Below you find all scales that include A#m7b5:

  • minor blues
  • locrian
  • locrian pentatonic
  • super locrian pentatonic
  • altered
  • locrian #2
  • locrian 6
  • dorian #4
  • hungarian major
  • flamenco
  • bebop locrian
  • half-whole diminished
  • composite blues
  • messiaen's mode #3
  • chromatic

A sharp half-diminished piano chord chart image

In case you prefer a non-interactive variant of the chord chart, we've embedded a PNG image below that shows the notes for the the A#m7b5 chord. Feel free to save or share the image as needed.

Piano chord chart for the A sharp half-diminished chord (A#m7b5). The notes A#, C#, E and G# are highlighted.