Why is it important to that the steady beat stays the same within a piece of music

Explanation:

beats can influence the way young children assimilate speech patterns, which may in turn affect their reading and writing abilities.

the answer is counterpoint.

counterpoint definition: "the art or technique of playing a melody or melodies in conjunction with another, according to fixed rules."

counterpoint is present in a lot of baroque music- such as bach (notably his wtc prelude and fugues) and scarlatti, but can also be found in music by mozart, beethoven. it can even be found in music as modern as john williams!

there is not really a certain expensive film type but i believe all of them cost mostly the same price, i hope this a little bit