For this evening's performance at Merkin Concert Hall, the members of Anonymous 4 — Marsha Genensky, Susan Hellauer, Jacqueline Horner and Johanna Maria Rose — will be joined for a few songs by Ruth Cunningham, who left the group to pursue a career change in 1998 after a dozen years.

Playing with Anonymous 4 on the Long Time Traveling tour are two ace instrumentalists, violinist/mandolinist Darol Anger and guitar player Scott Nygaard. Rumor has it that, at the end of the show tonight, a couple of fiddlers from the audience may just step up on stage as well ...