At 2 p.m. on Sunday, March 14, the Sammamish Symphony Orchestra will present a special event at the Benaroya Hall, 200 University St., Seattle. featuring the combined talents of the Cascadian, Everett, Rainier, and Vashon Island chorale groups, and special guest soloists. Features selections from Busoni’s Turandot Suite, and Mozart’s Requiem. Info: 206-517-7777 or www.sammamishsymphony.org.