A fondly remembered alto-sax firebrand and flutist who made an indelible mark on NYC's downtown-jazz scene before leaving us all too soon, Thomas Chapin is remembered by a starry constellation of friends and peers, including John Zorn, Mario Pavone, Bob Musso, Ned Rothenberg and Marty Ehrlich. The evening, a benefit for an upcoming documentary about Chapin, includes an exclusive preview of the film-in-progress.