Bbdim piano chord — the keys, the inversions, the theory

Bbdim is a diminished chord built from Bb, Db, Fb. Below: the keys to press, every inversion with its own diagram, the intervals it is made of, the keys whose scale contains it, and a progression that actually uses it. Press any diagram to hear it.

Bbdim

Bb · Db · Fb

Piano keyboardC4C5

Semitones above the root: 0 – 3 – 6

Two minor thirds stacked. Nothing sits still here; it is a chord that leads somewhere.

Inversions of Bbdim

  • Root position

    Bb · Db · Fb · bass Bb

  • Inversion 1

    Db · Fb · Bb · bass Db

  • Inversion 2

    Fb · Bb · Db · bass Fb

Same chord, different note at the bottom. Press a diagram to hear it — inversions are how you move between chords without jumping your hand across the keyboard.

Keys that contain Bbdim

  • Bvii°

In B it does this job: IV – vii° – I

  1. E
  2. Bbdim
  3. B

Questions