Who Sang These September Songs?

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Across
  1. 2. September 24, 1982
  2. 9. The September of My Years
  3. 10. September Song
  4. 11. September Gurls
  5. 13. September by the River
  6. 14. September
  7. 15. See You in September
  8. 17. September Blue
  9. 19. September Morning
  10. 20. The Late September Dogs
  11. 21. September Nights
Down
  1. 1. September Wine
  2. 3. September When it Comes
  3. 4. Maybe September
  4. 5. It Might as Well Rain Until September
  5. 6. September When I First Met You
  6. 7. Try to Remember (the Kind of September)
  7. 8. September Grass
  8. 12. September on My Mind
  9. 15. The September Girls
  10. 16. One September Day
  11. 18. September Night