[Zubersoft]

Annotations in MobileSheetsPro will not rotate if the page is rotated, as I don't currently support that. It's assumed that pages will be in the correct orientation before annotations are created.  I'm a little confused why you are having to rotate your scores at all though based upon your description. Have I misunderstood you, and you are just rotating your device? If you do that, the page should be resized but the annotations should still be in the correct orientation relative to the page.

Mike