Spafford plays the Phish after-party at Club Blu in the MontBleu Resort Casino & Spa at 11 p.m. Wednesday, Sept. 1, in Stateline, Nevada. Advance tickets are $25.

Known for their astonishing improvisational ability and off-the-cuff extended jams, Spafford paints a picture in real-time each night with a musical palette known only to each other. They play festivals all over the U.S. from Bonnaroo to Firefly and more. The band’s national tour started on Aug. 3 in Nashville, and it includes the nearby BottleRock festival in Napa on Sept. 3