There are so many possible issues that can arise when trying to print a document that it would be nearly impossible to troubleshoot printing issues here.  But a few questions might begin to narrow down the possible areas of trouble. 

1. Can you print other documents?
2. Can you open your PDF document? 
3. Can you print other PDF documents?
4. Does your printer have ink?
5. Is your printer cable connected correctly?

If the quality of your music is not what you think it should be, here are some suggestions:

1. Print in color, even though the document is black and white.
2. Check the quality of paper, the paper absorbs the ink.  Some paper will do this better.
3. If you printer has an option that describes the document as using photo or text, choose the photo option.