aptitude vs forte

aptitude

noun
  • Natural ability to acquire knowledge or skill. 

  • The condition of being suitable. 

forte

noun
  • A strength or talent. 

  • A passage in music to be played loudly; a loud section of music. 

  • The strong part of a sword blade, close to the hilt. 

adv
  • Loudly. 

adj
  • Loud. Used as a dynamic directive in sheet music in its abbreviated form, "f.", to indicate raising the volume of the music. (Abbreviated in musical notation with an f, the Unicode character 1D191.) 

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