St. Gregory the Enlightener Church of White Plains, NY, will hold its 18th annual “Lionel Galstaun Memorial Concert” on Sunday, Feb. 16, featuring João Kouyoumdjian, Brazilian-born classical guitarist, following badarak at the church (1131 North St., White Plains). Presented by the parish cultural committee. Free and open to the public, with complimentary luncheon. For information, click on the following links to view a flyer and access the parish website.