Context: A cappella [a kapˈpɛlla] (Italian for "in the manner of the chapel") music is specifically group or solo singing without instrumental accompaniment, or a piece intended to be performed in this way. It contrasts with cantata, which is accompanied singing. The term "a cappella" was originally intended to differentiate between Renaissance polyphony and Baroque concertato style. In the 19th century a renewed interest in Renaissance polyphony coupled with an ignorance of the fact that vocal parts were often doubled by instrumentalists led to the term coming to mean unaccompanied vocal music. The term is also used, albeit rarely, as a synonym for alla breve.

Question: What does A cappella mean in the Italian language?
Answer: in the manner of the chapel

Question: What is another term occasionally used to refer to A cappella?
Answer: alla breve

Question: At what point did Renaissance polyphony become popular again?
Answer: 19th century

Question: How is A cappella currently defined?
Answer: group or solo singing without instrumental accompaniment

Question: A cappella was originally used to tell the difference between which two styles?
Answer: Renaissance polyphony and Baroque concertato

Question: What is group or solo music called?
Answer: Unanswerable

Question: What does cantata music lack that Acappella has?
Answer: Unanswerable

Question:  What is a synonym for cantata?
Answer: Unanswerable

Question: What was renewed in the 1900's?
Answer: Unanswerable

Question: What did cantata origionally differerntiate between?
Answer: Unanswerable

Question: What term is also used as a synonym for concertato?
Answer: Unanswerable

Question: Alla breve was originally used to tell the difference between what styles?
Answer: Unanswerable

Question: What led to alla breve meaning unaccompanied vocal music?
Answer: Unanswerable

Question: What does Baroque concertato mean in Italian?
Answer: Unanswerable

Question: What does Renaissance polyphony contrast with that means accompanied singing?
Answer: Unanswerable