B dominant ninth piano chord - B9

The B dominant ninth chord is a 5-note chord consisting of the notes B, D#, F#, A and C#.
You can see these notes highlighted in the interactive piano chart below.
The chord itself is often abbreviated as B9.

Interactive piano diagram for the B dominant ninth chord

Piano keyboard displaying the B dominant ninth chord with the notes CbBAD#EbF#GbC#Db

Extended Chords

Chords that are a superset of B9. The chords include more notes but always B, D#, F#, A and C#.

Reduced chords

Chords that are a subset of B9. These contain less notes but all of them are included in B9.

Scales with B9

Below you find all scales that include B9:

  • mixolydian b6
  • lydian dominant
  • lydian minor
  • mixolydian
  • bebop
  • bebop minor
  • composite blues
  • messiaen's mode #3
  • chromatic

B dominant 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 B9 chord. Feel free to save or share the image as needed.

Piano chord chart for the B dominant ninth chord (B9). The notes B, D#, F#, A and C# are highlighted.