You know what sucks about music festivals? Sun. It makes you sweat, it turns your skin red, and it makes you tired. Not good. Which, we assume, is why the Brooklyn Electronic Music Festival (BEMF) will have two stages — one indoors! — where, from 4pm to 4am, there will be performances from more electronic artists than we have room to name: Everyone from the Juan MacLean and Young Love to BELL and Jupiter One.