Why is it that the Constitution outlines three branches of government yet so many departments, agencies, and bureaucracies exist in the US today?
The Constitution outlines the basic structure of government and describes its duties and basic functions. The way of carrying out those duties and fulfilling those functions, however, is not necessarily discussed. Early Presidents and other governmental leaders created agencies, offices, departments, and mechanisms to help govern the growing nation. These methods quickly became norms and were adopted as part of American government.
In a passage taken from a standard piece from within the common practice period of Western art music, what would one expect to come after a pre-dominant chord (such as ii, iii, or IV)?
A chord with dominant function would be expected - V (or V7) or some for. Of vii (diminished or fully diminished). Also acceptable would be another pre-dominant chord delaying the dominant.
How has he role of music in society changed since the 1920s?
In the early Twentieth Century, music was experienced in concert halls, bars, and parties. The gramophone was only just becoming affordable for most people but records were limited. As time has gone on, the affordability of recordings has increased as has the presence of music in Day-to-day life. Now we hear it in the background while shopping, on hold with customer service, in the car, and on our phones and other personal devices. Because of this, music has changed from a role as elite entertainment to an ever-present part of day-to-day life.