a cappella vs recital

a cappella

noun
  • A vocal performance with no instrumental accompaniment. 

adj
  • Singing solely or mainly without instrumental accompaniment. 

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

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. 

recital

noun
  • A vocal, instrumental or visual performance by a soloist. 

  • The act of reciting (the repetition of something that has been memorized); rehearsal 

  • The act of telling the order of events of something in detail the order of events; narration. 

  • That which is recited; a story, narration, account. 

  • A formal, preliminary statement in a deed or writing in order to explain the reasons on which the transaction is founded, prior to a positive allegation. 

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