Music that doesn't center on a particular key is referred to as
a. intoned.
c. nontonal.
b. untoned.
d. atonal.

Well where I'm from and with my musical past, it's usually referred to as "untoned" or just "playing in the wrong key".
But I could be wrong. Just thought this might help. :)

Ibelieve the answer is the renaissance

Answerthe paleolithic period;