“Baby Got Bach” is an interactive program, appropriate for ages three to six, that starts with BackStage Up Front, where kids play with real musical instruments, get hands-on experience with musical concepts, and play together on percussion instruments in a jam session. Then, it’s time for the MainStage Concert — a listening tour of great live classical music performed by world-class concert performers led by pianist Orli Shaham and her friends, including 92Y School of Music faculty. 92nd Street Y, Weill Art Gallery, 1395 Lexington Ave. Apr. 16, 4 p.m. Tickets are $18 at 92y.org.