The Cleveland Orchestra Youth Orchestra features some of the region’s best young musicians. Tonight, they show off their skills at Severance Hall at 7, in a program led by conductor Brett Mitchell. They will perform selections by Debussy and Ravel and, joined by the Cleveland Orchestra Youth Chorus (directed by Lisa Wong), they will perform the Fauré Requiem. If you arrive an hour early, you can see some of the Youth Orchestra and Youth Chorus members performing chamber music as part of a prelude concert. Tickets start at $15. (Niesel)