E(♯4) 7-string bass chord

How to play E(♯4) on 7-string bass

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 2nd fret and your middle finger on the G string at the 1st fret. Let the E string ring open. Don’t play the B, C and F strings.

From the B string x 0 1 2 1 x x (x: not played, 0: open)

What notes are in E(♯4)?

E(♯4), E major with sharp four, no fifth, is E, G♯ and A♯: the root (E), the major third (G♯) and the augmented fourth (A♯). Its formula is 1 3 ♯4.