A dominant sharp ninth piano chord - A7#9

The A dominant sharp ninth chord is a 5-note chord consisting of the notes A, C#, E, G and B#.
You can see these notes highlighted in the interactive piano chart below.
The chord itself is often abbreviated as A7#9.

Interactive piano diagram for the A dominant sharp ninth chord

Piano keyboard displaying the A dominant sharp ninth chord with the notes A Fb E G C# Db B# C

Reduced chords

Chords that are a subset of A7#9. These contain less notes but all of them are included in A7#9.

A dominant sharp ninth 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 A7#9 chord. Feel free to save or share the image as needed.

Piano chord chart for the A dominant sharp ninth chord (A7#9). The notes A, C#, E, G and B# are highlighted.