Listen to What You See
musebook score for iPhone is an interactive sheet music app that you can listen to what you see. (you can learn how to play the music)
synchronized turn: pages are automatically turned, as music plays. (the current page is synchronized to the music play position)
synchronized play: a second after turning pages, the music play position is synchronized to the current page.
time line controller indicates not current page but music play position.
brightness changes by scrubbing up and down.