St. Gregory the Enlightener Church of White Plains, NY, will hold its 22nd annual “Lionel Galstaun Memorial Concert” on Sunday, May 4, at 1:30 p.m. at the church (1131 North St., White Plains). Featuring soprano Stephanie Keledjian accompanied by Maestro Vagharshak Ohanyan. Complimentary light luncheon follows badarak. Presented by the parish Cultural Committee. Free and open to the public; donations will help support young Armenian musicians. RSVP (by Apr. 26) to (914) 428-2595, or stgregoryculturalcommittee@gmail.com.