Rob Fisher conducts the Cleveland Orchestra tonight as it plays a program featuring tunes by folk rockers such as Joni Mitchell, Neil Young, James Taylor, Jim Croce, Neil Diamond and Cat Stevens. Expect to hear classic tracks such as "Sundown," "You've Got a Friend" and "Time in a Bottle." Singer-guitarists AJ Swearingen and Jayne Kelli will appear with the orchestra. The concert begins at 7 at Blossom, and lawn tickets start at $24. (Niesel)