Winners of a 2023 Avery Fisher Career Grant and the 14th Banff International String Quartet Competition in 2022, the New York City-based Isidore String Quartet was formed in 2019 with a vision to revisit, rediscover, and reinvigorate the repertory. The young ensemble will do just that in its Princeton debut, in a program featuring a recent string quartet by multiple Grammy-winner Billy Childs; Henri Dutilleux’s fascinating Ainsi la nuit (“Thus the Night”); and W.A. Mozart’s forward-thinking “Dissonance” quartet. In the Performances Up Close series, audience members sit onstage alongside the musicians in an hour-long program. Tickets required. General: $40, students $10.