We don’t know for certain why Schubert left this symphony midway in 1822, with only two of the conventional four movements penned. Physical and mental health difficulties? Insecurity from the intimidating shadow of Beethoven? We may never be sure, but there is no doubt it still manages to be one of the great symphonies ever written. Courtney Lewis kicks off our Symphony in 60 Series by talking through all that gave this masterpiece a place in history. The Symphony’s principal oboe, Eric Olson, opens the program with a piece by living composer Bill Douglas that drops flavors of jazz, Afro-Cuban, American folk, and Celtic music.