Would I be allowed to use this artist name or would it infringe copyright?

I would like to use the name "brΔin" as a alias for producing hip hop beats similar to the likes of Flying Lotus and Afta-1. After I decided i liked that name i looked up just "Brain" on iTunes and a few other music downloading websites. There is an artist named "Brain", but since I'm using the triangle instead of an "a", would I be infringing the copyright because it is pronounced the same or am I okay?