B♭maj7♯5 6-string bass chord

How to play B♭maj7♯5 on 6-string bass

The most common way, the first shape above: lay your index finger flat across the five strings from the E to the C at the 6th fret, your ring finger on the D string at the 7th fret and your little finger on the G string at the 7th fret. Don’t play the B and A strings.

From the B string x 6 x 7 7 6 (x: not played, 0: open)

What notes are in B♭maj7♯5?

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