grace note vs intaglio

grace note

noun
  • Something that decorates, embellishes, or ornaments; a finishing touch. 

  • A musical note, indicated on a score in smaller type with or without a slash through it, played to ornament the melody rather than as part of it. Its note value does not count as part of the total time value of the measure it appears in. 

intaglio

noun
  • A design or piece of art which is engraved or etched into something. 

  • Any printing method in which the ink is laid upon the sunken parts of the printing form. 

verb
  • To engrave or etch using intaglio. 

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