Bachrach PhotographyPHILADELPHIA, PA (May 2, 2023) Prysm Strings, the beginner-intermediate string music education program of Philadelphia Youth Orchestra Music Institute (PYOMI), will perform in Church of the Redeemer (200 Pennswood Road, Bryn Mawr, PA) on Saturday, May 13, 2023, at 3:00 p.m.