The A#m9b5 chord (A sharp half diminished 9) contains the notes A#, C#, E, G# and B#. It is produced by taking the 1 (root), b3, b5, b7 and 9 of the A# Major scale. It can often be used as a substitute for the A# half diminished chord. Here’s how to play it.

10 Ways To Play The A#m9b5 chord

If you’ve come to this page just to view some chord diagrams for A#m9b5, here they are.

A Sharp Half Diminished 9 Chord 10 Shapes