artist vs past master

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. 

past master

noun
  • Someone who has previously been a master at a given lodge. 

  • One who has an extremely high level of ability or knowledge within an area of achievement or expertise. 

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