Music Trivia puzzle two

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Across
  1. 4. Early 90's Boy Band New Kids on the ______
  2. 5. Composer for the Lord of the Rings movies, Howard _______
  3. 8. Trinidadian rapper Nicki ______
  4. 9. Female lead in Shrek the Musical
  5. 10. Vivaldi wrote the Four _____
  6. 12. Composer of the Goldberg Variations
  7. 13. Lead singer of Queen, ______ Mercury
  8. 15. Hip hop group with members Quavo, Takeoff, and Offset
  9. 16. "Moment Like This" singer Clarkson
  10. 18. Broadway musical staring Jonathan Groff_____ Awakening
  11. 19. Piano Man Billy
  12. 21. The leader of a Marching Band is a _____ Major
Down
  1. 1. Singer of the songs "Material Girl" and "Vogue"
  2. 2. Ensemble of people singing together
  3. 3. Musical featuring the song "We Go Together"
  4. 6. Sometimes a conductor uses one
  5. 7. Frederic Chopin was a composer from this country
  6. 10. A guitar has six
  7. 11. Decrescendo means get ______ gradually
  8. 14. Lowest voice part in a choir
  9. 17. American trumpet player Armstrong
  10. 20. Rapper Kendrick