MPC Puzzle

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Across
  1. 3. opera song
  2. 4. do it again
  3. 7. not electric
  4. 10. singing group
  5. 11. direct,musically
  6. 13. words
  7. 15. small explosion
  8. 18. classic Canadian musical
  9. 19. ... Cohen
  10. 21. December date of The Big Sing
Down
  1. 1. composer of "Count on Me"
  2. 2. known for his Fifth
  3. 5. "Let It Be" composer
  4. 6. do this before you sing
  5. 8. triad
  6. 9. hip Gord
  7. 12. not sharp but ...
  8. 14. rolling ...
  9. 16. how to improve your singing
  10. 17. roof of the mouth
  11. 20. 1950s genre