A sharp diminished piano chord - A#dim

The A sharp diminished chord is a 3-note chord consisting of the notes A#, C# and E.
You can see these notes highlighted in the interactive piano chart below.
The chord itself is often abbreviated as A#dim.

Interactive piano diagram for the A sharp diminished chord

Piano keyboard displaying the A sharp diminished chord with the notes A#, C#, E A# Bb Fb E C# Db

A sharp 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#dim chord. Feel free to save or share the image as needed.

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