1. Haydn's 94th, because of a very loud and unexpected chord in the second movement: "Surprise"
2. Mendelssohn's 3rd, because the second movement is patterned after folk music from that country: "Scottish"
3. Bernstein's 3rd, because it includes a Jewish prayer for the dead: "Kaddish"
4. Mozart's 38th, because of the city it premiered in: "Prague"
5. Haydn's 85th, because it was a favorite of Marie Antoinette: "The Queen"
6. Beethoven's 6th, because it is a program work depicting country life: "Pastoral"
7. Saint-Saens' 3rd, because it includes an instrument not usually found in the orchestra: "Organ"
8. Mahler's 8th, because of the large number of performers necessary to play it: "Symphony of a Thousand"
9. Beethoven's 9th, because of the extra performers in the last movement: "Choral"
10. Tchaikovsky's 6th, because it was very emotional: "Pathetique"
11. Dvorak's 9th, because it was inspired by music the composer heard while in the United States: "From The New World"
12. Mozart's 31st, because it was written in that city: "Paris"
13. Shostakovich's 3rd, because he wrote it to celebrate a Soviet holiday: "First of May"
14. Mendelssohn's 5th, because the last movement is inspired by the Lutheran hymn "A Mighty Fortress Is Our God": "Reformation"
15. Vaughan Williams' 2nd, because the movements portray different parts of his country's capital city: "A London Symphony"
16. Schubert's 8th, because it only has two movements: "Unfinished"
17. Haydn's 45th, because the musicians leave the stage gradually in the last movement: "Farewell"

Bonus: A Berlioz five-movement piece inspired by his unrequited crush on an actress that depicts a drug trip (and you thought it started with the Dead?): "Symphonie Fantastique"