The Minnesota Sinfonia under the direction of Jay Fishman will present a free concert Saturday, April 22, 2 pm, at Holy Cross Catholic Church, 1621 University Ave. NE. The concert will feature Gao Hong, who will perform Vivaldi's "Four Seasons" with improvised variations on the Chinese pipa, a stringed instrument. Also on the program is Beethoven's Second Symphony and a work by South American composer José Nuñez Garcia. Families with children are encouraged to attend.