When the people at the Berlin-based Samurai Horo label asked Yu Asaeda to contribute to a compilation they were putting out, they got more than they'd bargained for.

"I must have sent them about 20 or 30 tracks in total," says the Tokyo-based producer. "And then they were like, 'Do you want to do an album?' "

Working under his Ena moniker, Asaeda has spent the past eight years crafting a singular brand of bass music. Whether they're operating at the tempo of dubstep — as on last year's fine "Bilateral" album — or the more rapid pulse of drum 'n' bass, his tracks retain a fractured, twitching energy, like they've just been roused from a fever dream.