Final answer:
During the Romantic period, the rise of the middle class and advancements in instrument technology had a profound impact on society and music. The increased availability of music through the Gutenberg press also contributed to changes in musical demand.
Step-by-step explanation:
The Romantic period in music brought about several societal changes as a growing number of people learned to play musical instruments. One major change was the rise of the middle class, which led to a larger audience for music and the need for composers to write for public concerts and festivals. The Industrial Revolution also had an impact on music, with advancements in instrument technology resulting in improved sound and more complex compositions. Additionally, the invention of the Gutenberg press allowed for wider distribution of music, leading to increased demand and the unification of polyphonic practice.