Introducing winScore! A simple and easy way to organize your PDF sheet music. Use winScore on any Windows 8 PC, or better yet, a Windows Surface tablet for a portable, access anywhere sheet music collection.
You can change the scrolling of pdf pages from vertical to horizontal.
Swipe in from the right, or mouse over the upper right corner to bring up the Settings Charm.
Select "Settings", then "Options"
In the Options flyout, toggle horizontal scrolling. More customizable settings will be made in future releases.