Tuesday: JACK/SO Tonight at Zankel Performances at Zankel Hall on March 6 at 7 PM (note the early start time) will feature two of contemporary classical music’s estimable chamber ensembles. JACK Quartet and SO Percussion team up in a program that includes a string quartet premiere by Philip Glass, a pitched percussion work by Donnacha Dennehy, and a piece for the combined forces and prepared disklaviers by Dan Trueman. (Tickets here). ****** Open Source Music Festival 2017 Recently Open Source Music Festival was kind enough to send us some videos of JACK and pianist Joel Fan performing as part of