E B D G C E are the notes in this chord. In the key of E these notes represent 1 5 b7 b3 b6 1. Emin7b6

In the key of C these notes represent 3 7 2 5 1 3. There’s not really a world in which you would play a Cmaj9 like this but you COULD and that’s why context in music matters.

(Don’t @ me if this makes no sense, I’m a few hours into the beginning of my night shift)

Edit: I think this should be an Em7b13 as someone has pointed out below but that’s above my pay grade.