Which is the name for the external masonry supports found on many Gothic cathedrals?

Color Field painting is a part of the Pop style

Indicate whether the statement is true or false

Why is it difficult to determine how old a musical tradition may be?

a. Music changes over time, reflecting the society that performs it. b. Music manuscripts cannot be dated accurately. c. Music rarely changes, making it timeless. d. No written records go back more than two hundred years.