harmonious vs soothing

harmonious

adj
  • Showing accord in feeling or action. 

  • Having components pleasingly or appropriately combined. 

  • Melodious; in harmony. 

soothing

adj
  • Tending to soothe. 

  • Giving relief. 

  • Freeing from fear or anxiety. 

noun
  • The act by which somebody is soothed. 

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