Which nineteenth-century theorist developed a simple way of discussing functional harmony that is the origin of our present-day outlook on chord progressions as motions toward tonics and dominants?

The ratio of 1:1.618 is known as the Golden _____.

a. Mean b. Ratio c. Section d. Proportion e. all of these are correct

Simple, folk-based rock music that was popular in cities like Liverpool and Manchester in the 1950s and '60s was called ________.

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