How do the characteristics of the music from the classical era differ from those of the baroque era?

The Baroque era dates roughly from 1600 to 1750. Some examples of Baroque composers, performers: Monteverdi, Bach, Purcell, Handel, and Corelli. The Classical era dates roughly from the mid-1700s to the mid-1800s. Some Classical composers: Mozart, Haydn, and Beethoven.
Baroque music was complex, highly tonal, and often polyphonic. It was trendy to perform in an energetic and emotionally charged style.The Romantic music that followed the Classical period was also emotional often nationalistic, historical, autobiographical, or explicitly story driven.

The linear perspective changed the quality of art because it gave art a sense of reality. it gave the illusion that the background and surroundings were actually close and/or far and a sense of depth. linear perspective change the quality of art following its birth the renaissance period as they want the art to be more realistic and they believe one way to achieve it is to use the method of linear perspective. it uses the principle of math to realistically portray space and depth in art. 

Answernational sound;