St. Gregory the Enlightener Church of White Plains, NY, will hold its 23rd annual “Lionel Galstaun Memorial Concert” on Sunday, Apr. 19, at 1:30 p.m. at the church (1131 North St., White Plains). Featuring violinist Angelina Tozlyan and pianist Seiran Tozlian. 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. 12) to (914) 428-2595, or stgregoryculturalcommittee@gmail.com. Click on the following links to view a flyer and access the parish website.