anthem vs antistrophe

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. 

antistrophe

noun
  • The lines of this part of the choral song. 

  • The repetition of a word or phrase at the end of successive clauses 

  • In Greek choruses and dances, the returning of the chorus, exactly answering to a previous strophe or movement from right to left. 

  • The repetition of words in an inverse order. 

  • The retort or turning of an adversary's plea against him. 

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