JamP3 Pro !!
www.xcreative.org
Is a great Application for all professional musicians and not only.
With this simple App you can forget all your music books and song books because in JamP3 Pro you can read them as Pdf file.
Not only !!
In JamP3 Pro you can upload also your Mp3 Backing Tracks and use JamP3 Pro as Mp3 Player as well.
But what is great in this App is that you can Link Mp3 to related Pdf !!
In this way everytime you will start an Mp3 it will show related Lyrics !!