Music in the middle ages

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Across
  1. 2. Text of the song, written in Latin
  2. 4. Composer of the Notre Dame cathedral
  3. 7. Is a religious chant
  4. 9. One note per syllable
  5. 10. A tool use to memorize songs
  6. 11. The choir sing the same melody simultaneously
Down
  1. 1. More than four notes per syllable
  2. 3. Musician of secultar music
  3. 5. Two or more notes per syllable
  4. 6. Polyphonic form
  5. 7. I'm a Benedictine monk, my name is...
  6. 8. This chant get closer to him