B♭maj7♭5 8-string guitar chord

How to play B♭maj7♭5 on 8-string guitar

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

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

What notes are in B♭maj7♭5?

B♭maj7♭5, B♭ major seventh flat five, is B♭, D, F♭ and A: the root (B♭), the major third (D), the diminished fifth (F♭) and the major seventh (A). Its formula is 1 3 ♭5 7.