Bdim7 bass chord

How to play Bdim7 on bass

The most common way, the first shape above: your middle finger on the E string at the 7th fret, your little finger on the A string at the 8th fret, your index finger on the D string at the 6th fret and your ring finger on the G string at the 7th fret.

From the E string 7 8 6 7 (x: not played, 0: open)

What notes are in Bdim7?

Bdim7, B diminished seventh, is B, D, F and A♭: the root (B), the minor third (D), the diminished fifth (F) and the diminished seventh (A♭). Its formula is 1 ♭3 ♭5 ♭♭7.

Why do four diminished seventh chords have the same notes?

A diminished seventh is minor thirds stacked all the way round, B, D, F and A♭, so Bdim7 has the same notes as the diminished sevenths on D, F and A♭. Any of its notes can be the root.