St. Peter’s Episcopal Church will host a choral sing Sunday, August 20, 6 p.m. The event is co-sponsored by the Long Island Choral Society. Meredith Baker conducts participants in J.S. Bach’s Magnificat & Cantata 140, Washet auf. Bring your own scores or rent them for the evening - $5 refundable deposit. The church is located at 500 South Country Rd. (27A) in Bay Shore. The donation is $5.