While the R. Kelly/Jay-Z collaboration failed miserably, the vinyl-only “Moth/Wolf Cub” single showed that bizarre genre crossovers could work. Four Tet was one of the primary founders of folktronica and Burial was one of the names that made dubstep the household name it now is. Locked in a room together, their sounds combined in a breathtaking fashion. Burial’s patient beats roll on smoothly under Four Tet’s ethereal cut-up loops. “Moth” is significantly subdued and minimal, but the B-side “Wolf Cub” is where the partnership really cooks, beginning with a distinctly Four Tet-sounding, diced hand piano and evolving to include Burial’s stuttering beat and moody atmosphere. It would be nice to hear more come out of this.