All night long the music from the next apartment was banging, thumping and pounded so loudly that I couldn't sleep. what is the error of this sentence?

Error of this sentence started from (banging, thumping and pounded so loudly that I couldn't sleep)

pounded should be pounding

Bart was 16 years old when he moved to New Jersey. He was unhappy until he befriended a few kids his age in his new neighborhood. During the winter, he helped his elderly neighbor, Mr. Jones, remove snow from his sidewalk. After that, he would go back to playing video games. In the summer, Bart would ask to go swimming in the Mr. Jone's pool.