my crossword MUSIC

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Across
  1. 1. violoncello is a bowed string instrument of the violin family Its four strings are usually tuned in perfect fifths
  2. 4. clef that places G above middle C on the second line of the staff
  3. 5. the quality of a sound governed by the rate of vibrations producing it the degree of highness or lowness of a tone
  4. 8. sometimes known as a fiddle is a wooden chordophone in the violin family
  5. 9. a member of the percussion group of musical instruments In the Hornbostel-Sachs classification system it is a membranophone
  6. 10. any of a class of musical instruments (such as a guitar or piano) whose sound is generated by plucking bowing
  7. 12. Gradually softer
  8. 13. a wooden stick that is strung with hair (traditionally the hair of a horse's tail) that is rubbed against tuned strings to produce sound
Down
  1. 1. Gradually increase the volume
  2. 2. a set of five horizontal lines and four spaces that each represent a different musical pitch
  3. 3. rest an attachment that you place on top of the violin to aid in holding the instrument
  4. 5. is a playing technique that involves plucking the strings of a string instrument
  5. 6. a musical or vocal sound with reference to its pitch quality and strength
  6. 7. also known simply as the bass is the largest and lowest-pitched bowed string instrument in the modern symphony orchestra
  7. 8. a string instrument that is bowed plucked or played with varying techniques Slightly larger than a violin
  8. 11. a linear succession of musical tones that the listener perceives as a single entity