Saxophonist Chris Potter's new album, Ultrahang (ArtistShare, 2009), is an exploration of groove and melody. In this interview, recorded before Potters performance with Dave Holland at the 2009 Tanglewood Jazz Festival, Potter talks about how a middle-class kid in Columbia, SC, ended up liking Chicago blues; why he looks first to please himself with the music he makes; and how rhythm breaks down barriers with an audience.