For the last couple months, Jim Schwall, the guitar-playing co-leader of the Siegel-Schwall Band, has been spending most of his Monday nights hanging out at the home of Chris Wagoner and Mary Gaines, the singing/songwriting multi-instrumental couple at the heart of the Stellanovas, Moon Gypsies and, before that, Common Faces. Jim had this particular Friday booked at Mother Fools, and since they were open, he invited Mary and Chris to share the stage. Expect blues, jazz, folk and pop originals by all three, plus a few carefully chosen covers played on various bowed and plucked string instruments and whatever else they bring along.