E maj7#11 Chord
How the E maj7#11 chord is built: its notes, its interval structure, and where it fits.
The E maj7#11 chord contains 4 notes: E – G# – A# – D#. It belongs to the sharp 11 (lydian) family of chord qualities. Like every chord, it is defined by the distances (intervals) between its notes, not by any one instrument — which is why the same formula names the chord whether it is voiced on a fretboard, a keyboard, or a choir.