orchestra vs troupe

orchestra

noun
  • The area in a theatre or concert hall where the musicians sit, immediately in front of and below the stage, sometimes (also) used by other performers. 

  • A semicircular space in front of the stage used by the chorus in Ancient Greek and Hellenistic theatres. 

  • A large group of musicians who play together on various instruments, usually including some from strings, woodwind, brass and/or percussion; the instruments played by such a group. 

troupe

noun
  • A company of, often touring, actors, singers or dancers. 

  • Any group of people working together on a shared activity. 

verb
  • To tour with a troupe. 

How often have the words orchestra and troupe occurred in a corpus of books? (source: Google Ngram Viewer )