How would you evaluate rock dancing? Why does rock dancing demand loud music? Does the performing and watching of spontaneous and powerful muscular motions account for some of the popularity of rock...

How would you evaluate rock dancing? Why does rock dancing demand loud music? Does the performing and watching of spontaneous and powerful muscular motions account for some of the popularity of rock dancing? If so, why? Is rock dancing primarily a mode to be watched or danced? Or is it both? Explain what the viewer and the dancer, respectively, might derive from the experience of rock dancing. Substitute hip-hop for rock and answer the same questions.