What began as a plan for a one-off performance of Leonard Cohen tunes sung a cappella by a couple of friends has turned into a 10-year odyssey of fine suits, dynamic singing and beards, naturally. Originally imagined by the late performance artist Peter Kadyk, and now counting upwards of 30 members, San Francisco’s Conspiracy of Beards combines the smoky poetic folk of the enigmatic songwriter with the harmonic punch of a large choral ensemble. Already a fixture at festivals like Hardly Strictly Bluegrass, the conspirators take their a cappella styling out of the choir hall and into bars and bookstores alike. This time they perform Friday, Feb. 7, Throckmorton Theatre. 142 Throckmorton Ave., Mill Valley. 8pm. $21—$26. 415.383.9600
