choreography vs two-step

choreography

noun
  • The dance steps, sequences or styles peculiar to a work, group, performance or institution. 

  • The art of creating, arranging and recording the dance movements of a work, such as a ballet. 

  • The art of creating and arranging sequences of movement for performances of any kind, such as in fight choreography. 

  • The representation of these movements by a series of symbols. 

  • The notation used to construct this record. 

two-step

noun
  • A ballroom dance in duple time, having long, sliding steps 

  • A piece of music for this dance 

adj
  • Used other than figuratively or idiomatically: see two, step. 

How often have the words choreography and two-step occurred in a corpus of books? (source: Google Ngram Viewer )