B♭ diminished 7th piano chord
The B♭ diminished 7th chord (also written A♯), written B♭dim7, on a keyboard. Its notes are B♭ – D♭ – F♭ – A♭♭ — free to print or download below.
Notes in the B♭ diminished 7th chord
The B♭ diminished 7th chord is built from the root, a minor third, a diminished fifth and a diminished seventh, giving the notesB♭ – D♭ – F♭ – A♭♭. On the keyboard diagram those keys are shaded so you can see the shape at a glance.
How to play the B♭ diminished 7th chord
- Find the notes. The B♭ diminished 7th chord uses the notes B♭ – D♭ – F♭ – A♭♭. Locate each one on your keyboard using the diagram above.
- Place your fingers. In root position, play B♭ – D♭ – F♭ – A♭♭ 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♭ diminished 7th chord — frequently asked questions
What notes are in the B♭ diminished 7th chord?
The B♭ diminished 7th chord (B♭dim7) is made up of the notes B♭ – D♭ – F♭ – A♭♭ — the root, a minor third, a diminished fifth and a diminished seventh.
What is the chord symbol for B♭ diminished 7th?
It is written as B♭dim7. On a lead sheet or chord chart you would see "B♭dim7" above the stave.
Is the B♭ diminished 7th chord diagram free to print?
Yes — print it or download the PDF or PNG for free, with no account or sign-up.