As Skrillex, Sonny Moore is a fairly astonishing thing – a musical superstar who has never released a proper album. This may suggest a cultural paradigm shift, or simply a DJ with little to say beyond the dance floor. His latest free EP leaves the question open. “The Reason” is an electro-house exercise with pitch-shift changes leading up to a mighty build-and-release, while “Scary Bolly Dub” is boilerplate bro-step wobble with a Bollywood infusion. Only the down-tempo title track finds compelling melodic and emotional turf, conjuring loss with some lonely keyboards, spacious percussion and a single repeated word. It’s a song-let, like the entire EP, that’s standing on the verge of getting it on.