Piano chord · Sevenths
B♭ diminished 7th chord on piano
Right hand: B♭ (1), D♭ (2), F♭ (3), A𝄫 (5)
How to play B♭dim7 on piano: the keys to press, which fingers to use, inversions and how it’s written on the staff.
Symmetrical and very tense — every note is a minor 3rd apart.
B♭dim7 is the vii°7 chord in B minor.
- Notes
- B♭D♭F♭A𝄫
- Formula
- 1♭3♭5𝄫7
- Built from
- root · minor 3rd · diminished 5th · diminished 7th
Piano
Root position · numbers are finger numbers
How to play it
Right handB♭1 · thumbD♭2 · indexF♭3 · middleA𝄫5 · pinky
Left handB♭5 · pinkythe root, an octave lower
Finger numbers: 1 thumb · 2 index · 3 middle · 4 ring · 5 pinky. Inversions use the same notes with a different one on the bottom — they help you move smoothly between chords. Tap any key to hear it.
Tips for playing B♭dim7 on piano
On piano, B♭dim7 has two black keys (B♭ and D♭) and two white keys.
Notice the F♭ in B♭dim7 (B♭ D♭ F♭ A𝄫): each note of the chord takes its own letter (B–D–F–A), so the diminished 5th has to be written F♭ rather than E — the same key on a piano, spelled to fit the chord.
