harmonize vs integrate

harmonize

verb
  • To provide parts to. 

  • To bring things into harmony, or to make things compatible. 

  • To provide the harmony for a melody. 

  • To be in harmonious agreement. 

  • To play or sing in harmony. 

integrate

verb
  • To include as a constituent part or functionality. 

  • To subject to the operation of integration; to find the integral of an equation. 

  • To desegregate, as a school or neighborhood. 

  • To indicate the whole of; to give the sum or total of; as, an integrating anemometer, one that indicates or registers the entire action of the wind in a given time. 

  • To form into one whole; to make entire; to complete; to renew; to restore; to perfect. 

  • To combine compatible elements in order to incorporate them. 

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