On Monday, May 23rd, with a performance by JACK Quartet at the 92nd Street Y, the New York Philharmonic’s second Biennial begins. Running until June 11th, a plethora of concerts are contained in this year’s offerings. Last week, Music Director Alan Gilbert outlined some of them at an “Insights at the Atrium” event. You can watch a video of it below.   On Tuesday, May 24th, Q2 whets listeners’ appetites for the Biennial with a 24-hour marathon devoted to the NY PHIL. Hosted by composer Phil Kline, it features recordings from the orchestra’s archive and record label. At 7 PM, there will be a live broadcast from National Sawdust of violinist Jennifer