Music terminology

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Across
  1. 6. Timpani
  2. 10. high and low notes
  3. 11. Strings
  4. 12. Loud
  5. 14. Brass sliding instrument
  6. 15. Walking pace
  7. 16. 8 notes
  8. 18. Dynamics
  9. 19. Instruments
Down
  1. 1. half a count
  2. 2. Slow tempo
  3. 3. Semitone higher
  4. 4. Tune that you sing
  5. 5. Note value of 4 counts
  6. 7. Woodwind instrument with double reed
  7. 8. Combination of long and short sounds
  8. 9. One sound
  9. 13. Semitone lower
  10. 16. Form
  11. 17. Number of beats in a bar