Justin has performed with the New York Philharmonic, the Chamber Music Society of Lincoln Center, the Moab Music Festival, the Chamber Music Society of Detroit, the Philharmonic Orchestra of the Americas, and the new music ensemble Alarm will Sound. As an educator, he has created programs for the New World Symphony, the Lincoln Center Institute, Carnegie Hall, the Caramoor Center for the Arts, and most recently is the host for the New York Philharmonic’s Young People’s Concerts.