Charles Meier The Arizona Choral Society (ACS), accompanied by a small group of instrumentalists, will present its spring concert entitled “Flight Song,” featuring inspiring musical selections of nature, refuge, and peace on Sunday, April 5 at 3:30 p.m. at the Catalina United Methodist Church, 2700 E. Speedway Blvd. in Tucson. Pre-concert tickets are $20; at the…