B flat augmented seventh piano chord - Bbmaj7#5

The B flat augmented seventh chord is a 4-note chord consisting of the notes Bb, D, F# and A.
You can see these notes highlighted in the interactive piano chart below.
The chord itself is often abbreviated as Bbmaj7#5.

Interactive piano diagram for the B flat augmented seventh chord

Piano keyboard displaying the B flat augmented seventh chord with the notes A# Bb D A F# Gb

Reduced chords

Chords that are a subset of Bbmaj7#5. These contain less notes but all of them are included in Bbmaj7#5.

B flat augmented seventh 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 Bbmaj7#5 chord. Feel free to save or share the image as needed.

Piano chord chart for the B flat augmented seventh chord (Bbmaj7#5). The notes Bb, D, F# and A are highlighted.