Question

The baroque idea that only one feeling should be communicated in piece of music is known as

Answer 1

It's known as The Doctrine of the Affections.
The Doctrine of the Affections conveys that music has the capability to arouse a certain type of emotion among the people who heard it, which happened due to the combination of tempo, melody, and the lyrics that created by the artists.

Answer 2

The baroque idea that only a single feeling should be communicated in a musical piece is called homophony . Baroque represented a change in how music depends on words to convey the meaning of the musical piece. It is based on the theory that music should be a method to illustrate the words. Opera is a great example of music that was born in this time period.