Summary about a song (III)

Few days ago, we listen to a listening in class. It is called Typewriter. After we had to do a summary about it. Then you can read it: 

Typewriter:

Its composer is Leroy Anderson. One of his best-known is the Typewriter. It´s play by one typewriter. We can listen in it that the composer changes the velocity. We also can listen a bell warning that it had arrived at the end of the line and the lever the roller.

 

https://youtu.be/hzB53YL78rE