Known as one the most adventurous promoters in New York, Eamon Harkin has cultivated something more than mere parties. Mister Saturday Night and Sunday Best are the stuff of legend. Great music on a great system, in a great space. It's a party put together by DJs who understand atmosphere, who bring more than a flash drive full of digital promos to set off the dancefloor. Harkin's devotion is evident. In addition to a busy schedule of parties in Brooklyn, he's taking MSN to Chicago and London in early 2012 as well as doubling down in the studio. Following several collaborative singles and remixes as Harkin & Raney (Throne of Blood, Wurst Music Company, On The Prowl), "Rigor Music" is Harkin's first ever solo EP. "Electric Light" is nothing if not confident. Expansive without feeling overblown, the song's build-up is matched only by the dubby subterranean stomp of the Brendon Moeller (Deep Space/Mule Electronic/Rekids/Steadfast/Throne of Blood) dub mix. On the reverse, Harkin toughens up the proceedings. "Rigor Music" is a propulsive acid track that feels classic without staying utterly beholden to its predecessors. Unsurprisingly, the Roman Flugel mix closes out the single in a storm of snarling synths, snares and a speaker-shaking bass. The digital version of the Rigor Music EP also includes "Electric Light" (Brendon Moeller Reshape) as an exclusive bonus track.