choreograph vs level set

choreograph

verb
  • To direct the development of a project; to orchestrate 

  • To design and record the choreography for a dramatic work such as a ballet 

level set

verb
  • To establish a baseline of mutual understanding 

noun
  • An event consisting of level setting 

  • The set of values x for which a real-valued function f(x) is equal to a given constant. 

  • A state of mutual understanding among parties 

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