SANTA BARBARA — UCSB Arts & Lectures presents Roomful of Teeth with Gabriel Kahane on 4 p.m. Sunday, March 24 at Hahn Hall. Grammy Award winners Roomful of Teeth have carved themselves a niche as one of America’s most interesting contemporary vocal ensembles. Collaborating with artists and thinkers from around the world, the group seeks to amplify voices old and new and expand the capabilities of the human voice. Their engaging new program features works by founding member Caroline Shaw, special guest Gabriel Kahane and other composers known for creating meaningful and adventurous new music.