Music puzzle =]

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Across
  1. 3. A fast pace rhythm
  2. 5. Playing something very fast
  3. 7. Set of beats in regular pattern
  4. 9. The amount of space between two notes
  5. 11. A composition that is a work in it self
  6. 12. When a voice repeats another voice from a distance
  7. 14. Changing the tempo to performer liking
  8. 15. A duration of the pitch of a sound
Down
  1. 1. A loud note
  2. 2. The amounts of notes that an instrument can play
  3. 4. Melodic assertion that’s gos through a compisision
  4. 5. The tone of sound
  5. 6. Changing the chord of an instrument
  6. 8. Making a note lasting longer
  7. 10. A mark on a beat to show its spot in the measure
  8. 13. Part of song that start with a one voice/instrument