Answer 1

The sound that is pleasing to the ear is called music. For example, the sound produced by violins, pianos, flutes, pungs, etc.

The sound that is unpleasing to the ear is called noise.

Some examples of noise are as follows:

(1) Sound produced by horns of buses and trucks

(2) Sound of electrical generators

(3) Sound of a gun shot

(4) Sound produced by jackhammers

Yes. Music can become noise when played at high volumes.