GUTS is a CD/DVD and Art booklet triptych by virtuoso bassist Mark Dresser. The CD includes improvisations, compositions and the interpretations of two pieces by Pulitzer Prize winning composer Roger Reynolds. The two and half hour DVD contains a demonstration of Dresser’s extended techniques with attached notated charts, studies and concert pieces. As well there is a conversation between Dresser and Reynolds on their collaboration. In addition Dresser discusses improvisation, composition and developing a personal sound.