anthem vs psalmody

anthem

verb
  • To celebrate with anthems. 

noun
  • A choral or vocal composition, often with a religious or political lyric. 

  • A very popular song or track. 

  • A hymn of praise or loyalty. 

psalmody

verb
  • To celebrate in psalms. 

noun
  • A collection of psalms. 

  • The singing or the writing of psalms. 

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