D♯dim7 8-string bass chord

How to play D♯dim7 on 8-string bass

The most common way, the first shape above: your index finger on the D string at the 1st fret, your ring finger on the G string at the 2nd fret and your middle finger on the F string at the 1st fret. Let the C string ring open. Don’t play the F♯, B, E and A strings.

From the F♯ string x x x x 1 2 0 1 (x: not played, 0: open)

What notes are in D♯dim7?

D♯dim7, D♯ diminished seventh, is D♯, F♯, A and C: the root (D♯), the minor third (F♯), the diminished fifth (A) and the diminished seventh (C). 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, D♯, F♯, A and C, so D♯dim7 has the same notes as the diminished sevenths on F♯, A and C. Any of its notes can be the root.