B♭ augmented piano chord
The B♭ augmented chord (also written A♯), written B♭aug, on a keyboard. Its notes are B♭ – D – F♯ — free to print or download below.

Notes in the B♭ augmented chord
The B♭ augmented chord is built from the root, a major third and an augmented fifth, giving the notesB♭ – D – F♯. On the keyboard diagram those keys are shaded so you can see the shape at a glance.
How to play the B♭ augmented chord
- Find the notes. The B♭ augmented chord uses the notes B♭ – D – F♯. Locate each one on your keyboard using the diagram above.
- Place your fingers. In root position, play B♭ – D – F♯ together — thumb on the lowest note and the remaining fingers on the notes above.
- Play it as a block or broken. Play all the notes at once for a solid chord, or one after another for an arpeggio.
B♭ augmented chord — frequently asked questions
What notes are in the B♭ augmented chord?
The B♭ augmented chord (B♭aug) is made up of the notes B♭ – D – F♯ — the root, a major third and an augmented fifth.
What is the chord symbol for B♭ augmented?
It is written as B♭aug. On a lead sheet or chord chart you would see "B♭aug" above the stave.
Is the B♭ augmented chord diagram free to print?
Yes — print it or download the PDF or PNG for free, with no account or sign-up.