D7♭9 8-string guitar chord

How to play D7♭9 on 8-string guitar

The most common way, the first shape above: your ring finger on the A string at the 5th fret, your index finger on the D string at the 4th fret, your little finger on the G string at the 5th fret and your middle finger on the high B string at the 4th fret. Don’t play the F♯, low B, low E and high E strings.

From the F♯ string x x x 5 4 5 4 x (x: not played, 0: open)

What notes are in D7♭9?

D7♭9, D dominant seventh flat nine, is D, F♯, A, C and E♭: the root (D), the major third (F♯), the perfect fifth (A), the minor seventh (C) and the flat ninth (E♭). Its formula is 1 3 5 ♭7 ♭9.