title_body: How do I make an ebook of sheet music?
upvoted_answer: My recommendation is to keep it as a PDF and let people read it by using a PDF app on their tablet. 
  
  As long as you have a decent sized tablet (9 inches or more), PDFs can look superb. I don't know if scores have any special requirements for size. 
  
  Another option would be to use a fixed layout epub http://wiki.mobileread.com/wiki/Fixed_layout_ePub
  
  The easiest way to do that would be to purchase a one month license to Adobe Indesign, import your pdf into it and do any necessary formatting adjustments (One month licenses are cheap, but the learning curve is fairly steep). 
  
  Aha, I have forgotten to ask the key question: do you want to sell it? If yes and you want to do through Amazon, that is a whole different question (your only option would be a fixed layout epub for Kindle). 
  
  Even if you say yes, I would still just keep it as a pdf and upload it to smashwords and sell it there (they accept pdf files for selling).