[Supply Records]

Boston’s B-Tracks debuted with aplomb on last year’s Specialize, a sleek, dynamic, and diverse EP with a particularly sensational title track. Come Back sees the duo returning to their own Supply Records imprint for the follow-up. Although there’s nothing as explosive here as “Specialize,” the record shows B-Tracks working with a similar array of textures and moods, and furthers the case for their ability, sounding thoroughly crisp and primed for the floor.

As with its predecessor, Come Back begins with its title track, which is immediately reminiscent of vintage New York house. A clean, synthetic organ pattern melds with a bouncy, shuffling rhythm, and ends up alternating with an easygoing soul sample. The track has a carefree, celebratory feel, but on the remaining three tracks the duo dive into deeper, moodier realms. “The Next Step” skips along at a speedy clip, layering dubby, modulating chords and a sharply funky bass line, while “When The Time Comes” is a rumbling, hissing slice of dub techno that’s easily one of their darkest productions to date. Finally, “Crisis” finds B-Tracks working in a Carl Craig-alike style; the track combines swelling string pads with rolling congas, and eventually adds a spectral, subtly coiling synth melody. Come Back is a varied collection, but for all their exploration of moods and genres, B-Tracks always manage to sound confidently proficient.