Listening to music can help drain out other distractions, but it can also be a distraction itself.

If you did better with it, then use it. If not, then don't.

-JackTuff13

P.S.
The more you use the system, the faster you'll go. For example, same comprehension on the chapter you have right now, probably in about 10 minutes. You can do it, just keep going.