D♯dim 7-string bass chord

How to play D♯dim on 7-string bass

The most common way, the first shape above: your index finger on the B string at the 4th fret and your middle finger on the D string at the 4th fret. Let the A string ring open. Don’t play the E, G, C and F strings.

From the B string 4 x 0 4 x x x (x: not played, 0: open)

What notes are in D♯dim?

D♯dim, D♯ diminished, is D♯, F♯ and A: the root (D♯), the minor third (F♯) and the diminished fifth (A). Its formula is 1 ♭3 ♭5.

What is the difference between D♯dim, D♯m7♭5 and D♯dim7?

D♯dim is three notes, D♯, F♯ and A. D♯m7♭5 adds the minor seventh, C♯; D♯dim7 adds the diminished seventh, C, a half step lower.

Where does D♯dim go?

Most often up a half step, to E: it is the chord on the seventh note of a major key, leading back to the tonic.

Keys with D♯dim

D♯dim is the vii° chord in E major and the ii° chord in C♯ minor.