Dubstep wunderkind James Blake stopped into the Beebs over the weekend to DJ his Essential Mix, a playlist that featured Arthur Russell, Snoop Dogg, Salem and a couple of unreleased/unheard JB solo tracks. Stream the set over at the BBC's website; it'll only be up through Friday. The tracklist: Erik Satie - "Gnossienne No.5?" ?James Blake - "Olivia Kept?" James ...