national anthem vs singsong

national anthem

noun
  • The official song of a constituent state of a country. 

  • The official song of a nation or sovereign state, generally of a patriotic nature and played at events to celebrate or honor said state. 

singsong

noun
  • A piece of verse with a simple, song-like rhythm. 

  • A drawling or monotonous tone, as of a badly executed song. 

  • Bad singing or poetry. 

  • An informal gathering at which songs are sung; a singing session. 

adj
  • Like a piece of singsong; simple and melodic, varying in pitch (of tone of voice etc.) 

verb
  • To utter in a singsong voice. 

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