During 2009 and 2010, James Blake issued a clutch of abstract dubstep singles on Hemlock, Hessle Audio, and R&S. Each release increased anticipation for the producer’s next move as he continually shuffled the deck on his bristly, off-center, and generally groove-less tracks, some of which incorporated vocals — he sampled Kelis and Aaliyah on “CMYK,” for instance — or his own voice, heavily processed. The Klavierwerke EP, the last in the series, was the most stripped down of the bunch. The day after it was released, Blake uploaded a video for his dramatic cover version of Feist’s “Limit to Your Love,” which indicated that the focus on his voice and sparse backing would continue. Consisting of Blake’s pensive vocal, a simple but affecting piano, and recurring beat weighed down by sub-bass, it’s one of the most straightforward tracks on Blake’s brief debut album. The following “Give Me My Month” deviates most from Blake’s vinyl output; it’s a wistful piano-and-voice ballad that has far more in common with Procol Harum than any given contemporary linked to Blake. The rest of the tracks are more like exercises in sound manipulation and reduction than songs. The approach is no fault, but Blake pares it down to such an extent that the material occasionally sounds not just tentative but feeble, fatigued, even, as on “I Never Learnt to Share,” where one creaky line is repeated and treated throughout, placed over swelling synthesizer frequencies and a stamping beat. “The Wilhelm Scream,” one of the album’s highlights, is far more effective, a ballad with a pulse that increases in intensity with skillfully deployed reverb and surging waves of soft noise. – Andy Kellman