Permutations at the Octagon Barn – Featuring guitarist Paul James Quigley, cellist Will Hayes, and flutist Melanie Chirignan:  an evening of solos and duos culminating with Hungarian Trio by Nathan Kolosko. 7:30 PM at the Octagon Barn, 588 Middle Road in Knox (Delanson 12053 for GPS).  $12. (518) 618-5376.