All chords

Bb Db E G: Bb diminished seventh chord

Keyriff names these keys A#dim7. It also reads them as C#dim7/Bb, Edim7/Bb and Gdim7/Bb. In Bb diminished seventh they’re spelled Bb Db Fb Abb.

• Root position of Bbdim7
• Third inversion of C#dim7
• Second inversion of Edim7
• First inversion of Gdim7