Music lesson

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Across
  1. 2. a raised platform in a theater, auditorium, etc., where the performers stand
  2. 5. a singer who provides vocal harmony with the lead vocalist or other backing vocalists
  3. 8. a person or group of people whose job is to protect someone from attack
  4. 9. any of various instruments resembling a (large) standard guitar, but which produces lower notes
Down
  1. 1. a set of drums and cymbals
  2. 3. a guitar whose tone is magnified electrically by a microphone or pickup device
  3. 4. someone who admires and supports a person, sport, sports team, etc
  4. 6. a projected spot of light used to illuminate brilliantly a person, object, or group on a stage
  5. 7. someone who dances for fun, as a hobby, or for a job