C7♯5 7-string bass chord

How to play C7♯5 on 7-string bass

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

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

What notes are in C7♯5?

C7♯5, C augmented seventh, is C, E, G♯ and B♭: the root (C), the major third (E), the augmented fifth (G♯) and the minor seventh (B♭). Its formula is 1 3 ♯5 ♭7.