Unscripted and Unrehearsed. Bay area fine artist Peter Baron hosts his all-improvisational jazz series with top bay area musicians. No known songs, the musicians have no idea who they are playing with until they show up, and everyone creates on the spot all show long. Thanks to Jason Stewart on Guitar, Roderick Brewster on Bass, Chris Ruiz on Drums, and Art Hafen on Organ and Trombone.