Gmaj7♭5 8-string guitar chord

How to play Gmaj7♭5 on 8-string guitar

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

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

What notes are in Gmaj7♭5?

Gmaj7♭5, G major seventh flat five, is G, B, D♭ and F♯: the root (G), the major third (B), the diminished fifth (D♭) and the major seventh (F♯). Its formula is 1 3 ♭5 7.