answer: #Person1# complains to #Person2# that #Person2# plays the music too loudly. #Person2# feels sorry.
documents: #Person1#: Excuse me. I'd like to make a complaint.
  #Person2#: Really? What seems to be the problem?
  #Person1#: Well, don't you think you are playing the music too loudly?
  #Person2#: Oh? I'm sorry. I didn't realize it was so loud.
  #Person1#: Yes. I am preparing for my exam next week and your music is bothering me a great deal that I can't hear myself think.
  #Person2#: Sorry. I'll turn it down.