Dmaj7♭5 7-string bass chord

How to play Dmaj7♭5 on 7-string bass

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

From the B string x x x 0 1 1 1 (x: not played, 0: open)

What notes are in Dmaj7♭5?

Dmaj7♭5, D major seventh flat five, is D, F♯, A♭ and C♯: the root (D), the major third (F♯), the diminished fifth (A♭) and the major seventh (C♯). Its formula is 1 3 ♭5 7.