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B♭dim7 chord on piano

Bb diminished 7th: B♭ · D♭ · F♭ · A♭♭. It sounds maximum suspense — stacked minor 3rds that could resolve four different ways.

NotesB♭ D♭ F♭ A♭♭ Built fromroot + minor 3rd + diminished 5th + diminished 7th
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On the keyboard

F♭A♭♭F♭A♭♭D♭B♭D♭B♭

Fingering

Right hand, root position: B♭ — finger 1 · D♭ — finger 2 · F♭ — finger 3 · A♭♭ — finger 5. (1 = thumb, 5 = little finger.)

Inversions

The same notes in a different order. Inversions are how players move between chords without jumping:

B♭ chords of every quality

B♭B♭mB♭7B♭maj7B♭m7B♭6B♭m6B♭dimB♭dim7B♭augB♭sus2B♭sus4B♭add9B♭9

Every diminished 7th chord

Cdim7C♯dim7Ddim7E♭dim7Edim7Fdim7F♯dim7Gdim7G♯dim7Adim7B♭dim7Bdim7

All piano chords →