a cappella vs shanty

a cappella

noun
  • A vocal performance with no instrumental accompaniment. 

adv
  • In a manner of a choir with no instrumental accompaniment; literally, "in the style of the (Sistine) Chapel (in Rome)", such as a musical Mass done a cappella. 

adj
  • Singing solely or mainly without instrumental accompaniment. 

  • Related to a form of purely vocal music mostly associated with American college performance groups. 

shanty

noun
  • A song a sailor sings, especially in rhythm to his work. 

  • A rudimentary or improvised dwelling, especially one not legally owned. 

  • An unlicensed pub. 

  • A roughly-built hut or cabin. 

verb
  • To inhabit a shanty. 

adj
  • Jaunty; showy. 

  • Living in shanties; poor, ill-mannered and violent. 

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