Which industry revolutionized music during the Renaissance?

The printing press revolutionized the music and literature industry because it led to an explosion of music and book publishing.

Or if you want to be fancier:

It wasn’t an industry. It was two composers of the early Renaissance period. They were Jacob Obrecht and Johannes Ockeghem and both were priests. They developed major changes in the compositional approach to religious vocal music that distinguished their works from music of the middle ages. These changes were historical events, yet their names are often ignored in general music history textbooks and the first important composer of the Renaissance who is often mentioned is Josquin Desprez. Nevertheless, if not for his predecessors, the style of vocal music of this period might have been totally different.

1. read the following excerpt from franklin d. roosevelt's "fireside chat 19":

on the other side of the picture, we must learn also to know that guerilla warfare against the germans in, let us say serbia or norway, us; that a successful russian offensive against the germans us; and that british successes on land or sea in any part of the world strengthen our hands.

remember always that germany and italy, regardless of any formal declaration of war, consider themselves at war with the united states at this moment just as much as they consider themselves at war with britain or russia. and germany puts all the other republics of the americas into the same category of enemies. the people of our sister republics of this hemisphere can be honored by that fact.  

the true goal we seek is far above and beyond the ugly field of battle. when we resort to force, as now we must, we are determined that this force shall be directed toward ultimate good as well as against immediate evil. we americans are not destroyers — we are builders.

analyze the effectiveness of this excerpt. how does it function within the speech as a whole? how does the structure of the excerpt to convey the speech's purpose and key points? support your argument with evidence from the speech. (10 points)