Actually, all of the songs except "The Sorcerer's Apprentice" were new additions to Fantasia. Here's the entire song list (as copied off of my soundtrack):

  1. Beethoven: "Syphony No. 5" (2:51)
  2. Respighi: "Pines of Rome" (10:18)
  3. Gershwin: "Rhapsody in Blue"* (12:32)
  4. Shostakovich: "Piano Concerto No. 2, Allegro, Opus 102" (based on the story The Steadfast Tin Soldier) (7:22)
  5. Saint-Saëns: "Carnival of the Animals (Le Carnaval des Animaux), Finale" (1:54)
  6. Dukas: "The Sorcerer's Apprentice"* (9:33)
  7. Elgar: "Pomp and Circumstance, Marches #1, 2, 3 & 4" (6:18)
  8. Stravinsky: "Firebird Suite - 1919 Version" (9:11)

      *Performed by the Philmarmonia Orchestra. All others performed by the Chicago Symphony Orchestra and conducted by James Levine.