Musical titles

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Across
  1. 2. Hello
  2. 4. My Fair
  3. 5. How to Succeed in Business Without Really
  4. 6. The Sound Of
  5. 10. The Most Happy
  6. 12. No, No,
  7. 14. 42nd
  8. 16. A Chorus
  9. 17. Guys and
Down
  1. 1. West Side
  2. 3. South
  3. 6. The Music
  4. 7. Meet Me In
  5. 8. Gentlemen Prefer
  6. 9. Singing In The
  7. 11. An American in
  8. 13. On The
  9. 15. Show