anthem vs hymnody

anthem

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. 

verb
  • To celebrate with anthems. 

hymnody

noun
  • The hymns of a particular church or of a particular time. 

  • The writing, composing, or singing of hymns or psalms. 

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