pm rot (no canto X spoilers)

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Across
  1. 2. floor with songs barely ever heard when used
  2. 4. AAARGH !!
  3. 6. keter realization boss with song in all 3 games
  4. 9. ruina top 10 -> trash id
  5. 10. yo-______-ku
Down
  1. 1. one who's voice enchants many that HEAR it
  2. 3. best served buttered
  3. 5. the one who SEEs with eyes not of his own
  4. 7. they SPEAK in a way incomprehensible to most
  5. 8. doesn't FIVE, ONE, or SEVEN(answer in initials)