Trying to move entire sections of music

I'm sorry, but the kind of editing you're trying to do is way beyond the capabilities of editing in Acrobat Pro. It's best when you want to fix someone's name, adjust a spelling error, or change a date. But wholesale moving parts like that is just not possible.

One thing you might try is if you have Adobe Illustrator, that "might" be possible. However, it also depends on how the PDF was constructed. If it was constructed as a "flat" document (no layers), you might again be out of luck.

I can think of two other options: export it as a Word document. If you do not have Word, you can open a Word document in Pages. However, I'm not at all certain this will work, but it's worth a try.

One last option is to take screenshots of the music and paste them into a Word/Pages document. (To do a screenshot on a Mac, press Command-Option-3; you'll see a small bullseye and you can marquee from one side to the other. The screenshot will appear on the desktop as a PNG document.

Good luck!