The earliest discovered inscribed clay tablets come from

What weakened the traditional role of tonality in music?

a. chromatic dissonance b. new chords like the ninth and eleventh chords c. tone clusters d. unresolved dissonance e. all of the above

In the early 1980s, ________ broke down racial barriers by having his videos aired on MTV.

Fill in the blank(s) with the appropriate word(s).