a cappella vs jingle

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. 

jingle

noun
  • A jingle shell. 

  • A carriage drawn by horses. 

  • The sound of metal or glass clattering against itself. 

  • A brief phone call; a ring. 

  • A small piece of metal attached to a musical instrument, such as a tambourine, so as to make a jangling sound when the instrument is played. 

  • A memorable short song, or in some cases a snippet of a popular song with its lyrics modified, used for the purposes of advertising a product or service in a TV or radio commercial. 

  • Coin money. 

verb
  • To cause to make a noise of metal or glass clattering against itself. 

  • To make a noise of metal or glass clattering against itself. 

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