Medieval Europeans were the first to develop all EXCEPT which of the following musical innovations?

One of the impressive elements of Elton John's career is how brief it was in view of his numerous hits

a. True b. False

How is high-relief sculpture different from low-relief sculpture?

A. High-relief is installed high upon the wall of a building. B. High-relief is a freestanding work that can be viewed from any angle. C. High-relief projects only slightly from the background. D. Elements of high-relief may be in the round, unattached to the background.