A♭maj7♯5 7-string bass chord

How to play A♭maj7♯5 on 7-string bass

The most common way, the first shape above: your little finger on the E string at the 4th fret, your ring finger on the A string at the 3rd fret, your index finger on the D string at the 2nd fret and your middle finger on the F string at the 2nd fret. Let the G and C strings ring open. Don’t play the B string.

From the B string x 4 3 2 0 0 2 (x: not played, 0: open)

What notes are in A♭maj7♯5?

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