Orchestra...and stuff

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Across
  1. 3. Composer of "Young Person's Guide to the Orchestra"
  2. 4. The number of variants in "Dives and Lazarus" by Vaughan-Williams
  3. 7. Created the Sonata-Allegro form
  4. 8. What Bruce Dickenson needs more of...
  5. 11. Prominent 20th Century American composer
  6. 12. Largest instrument in the string family
  7. 13. Suite of ______ by Anderson
Down
  1. 1. English composer who wrote "The Planets Suite"
  2. 2. Highest pitched string instrument in the orchestra
  3. 3. Composer of 9 symphonies
  4. 5. Baroque Era composer
  5. 6. Composed "The Rite of Spring"
  6. 7. _____ on the Shore by Grainger
  7. 9. Referred as a "middle-fiddle" by Percy Grainger
  8. 10. Yo-Yo Ma performs with this instrument