MUSIC

Happy 90th to Copland: The St. Paul Chamber Orchestra in Minnesota tonight will perform Aaron Copland’s 1925 experiment with jazz, “Music for the Theater,” to mark the composer’s 90th birthday. The concert also features a nocturne from 1939, “Quiet City,” the lively “Three Latin American Sketches” from 1972 and the Pulitzer Prize-winning “Appalachian Spring,” which Copland composed for choreographer Martha Graham in 1945. National Public Radio plans to tape the concert at Ordway Music Theater and broadcast the two-hour program sometime this month. Copland lives in Upstate New York.