Emancipator Ensemble is the definition of chill, downtempo, relaxabeat, headbobble, groovetaste, and other, as-of-yet nonexistent genres. They could be the backing band for Sting's more recent efforts—if they were a less interesting, that is. Live drums, violin, guitars and prerecorded sounds generated via laptop make up the sonic swell, and, in some concerts, visual projections gives another dimension to the experience. The Portland-based group performs with Slow Magic and Nym Sunday, March 30 at Hopmonk. 230 Petaluma Ave., Sebastopol. $30. 707.829.7300.