Maniacal music

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Across
  1. 1. if you plug it into a Guitar it makes the sound very loud
  2. 4. the lines that musical notes sit on
  3. 7. a noise
  4. 8. makes a booming sound in music
  5. 9. a pitch of a sound
Down
  1. 2. a song
  2. 3. to get a guitar sounding right you must
  3. 5. a gap in the music
  4. 6. a certain sound used when playing music