bravura vs proficient

bravura

noun
  • A highly technical or difficult piece, usually written for effect. 

  • A display of daring. 

adj
  • Overly showy; ostentatious. 

proficient

noun
  • An expert. 

adj
  • Good at something; skilled; fluent; practiced, especially in relation to a task or skill. 

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