Former JGB guitarist Stu Allen will sit in with Phil Lesh and his friends at San Rafael, CA’s Terrapin Crossroads this evening. As previously reported, Lesh is hosting a series of free shows in the venue’s bar space this weekend. Dubbed “album week,” Lesh will likely play an album in its entirety each night. His previously confirmed band includes Grahame and Brian Lesh with Ross James, Mark Karan, Connor O’Sullivan and Elliott Peck. After sitting in with Lesh, Allen will head to Berkeley, CA’s Ashkenaz for his weekly Grateful Dead night show with Mars Hotel.