B♭7♯5 7-string guitar chord

How to play B♭7♯5 on 7-string guitar

The most common way, the first shape above: your index finger on the A string at the 1st fret, your ring finger on the D string at the 4th fret, your middle finger on the G string at the 3rd fret, your middle finger on the high B string at the 3rd fret and your little finger on the high E string at the 4th fret. Don’t play the low B and low E strings.

From the low B string x x 1 4 3 3 4 (x: not played, 0: open)

What notes are in B♭7♯5?

B♭7♯5, B♭ augmented seventh, is B♭, D, F♯ and A♭: the root (B♭), the major third (D), the augmented fifth (F♯) and the minor seventh (A♭). Its formula is 1 3 ♯5 ♭7.