forte vs saving grace

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.) 

saving grace

noun
  • A redeeming quality or factor. 

  • God's grace or blessing, enabling sinners to attain salvation. 

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