escaping vs fugue

escaping

noun
  • The act of one who escapes; an escape. 

  • That which escapes or leaks out; an emission. 

fugue

noun
  • A fugue state. 

  • A contrapuntal piece of music wherein a particular melody is played in a number of voices, each voice introduced in turn by playing the melody. 

  • Anything in literature, poetry, film, painting, etc., that resembles a fugue in structure or in its elaborate complexity and formality. 

verb
  • To improvise, in singing, by introducing vocal ornamentation to fill gaps etc. 

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