Stranger things have happened, but rarely do they make such beautiful music. The three esses that comprise the enigmatically titled s / s / s are as follows: Sufjan Stevens, he of the Fifty States Project and various baroque folk-pop opuses. Serengeti, the wry-witted rapper known for in-depth on-record character studies. And Son Lux, silken-voiced singer, studio wizard and singular beatsmith. The project's roots reach back to 2009's Dark Was the Night compilation, where Sufjan and Geti met over a Buck 65 remix of a song written by psych-folkie Castanets.

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