artist vs tightrope walker

artist

noun
  • A person who is skilled at some activity. 

  • A person who creates art as an occupation. 

  • A person who creates art. 

  • A recording artist. 

tightrope walker

noun
  • An acrobat who practices tightrope walking. 

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