A sharp sixth/ninth piano chord - A#6/9

The A sharp sixth/ninth chord is a 5-note chord consisting of the notes A#, C##, E#, F## and B#.
You can see these notes highlighted in the interactive piano chart below.
The chord itself is often abbreviated as A#6/9.

Interactive piano diagram for the A sharp sixth/ninth chord

Piano keyboard displaying the A sharp sixth/ninth chord with the notes A#BbDE#FGB#C

Extended Chords

Chords that are a superset of A#6/9. The chords include more notes but always A#, C##, E#, F## and B#.

Reduced chords

Chords that are a subset of A#6/9. These contain less notes but all of them are included in A#6/9.

Scales with A#6/9

Below you find all scales that include A#6/9:

  • major blues
  • lydian dominant
  • lydian
  • mixolydian
  • major
  • bebop
  • bebop minor
  • bebop major
  • ichikosucho
  • composite blues
  • chromatic

A sharp sixth/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 A#6/9 chord. Feel free to save or share the image as needed.

Piano chord chart for the A sharp sixth/ninth chord (A#6/9). The notes A#, C##, E#, F## and B# are highlighted.