Libby and Trip have not performed together in several years. This was a fun reunion, as alumna Libby re-joined the NY Young Musicians' Ensemble to help out the cello section, where Trip is principal. They had a great concert, in Lincoln Center, and Libby got a ride home out of the deal.
ETA: The both look so grim in this photo. I assure you, it is reaction to mom taking too many photos, not reaction to music performances!