"Shelve those 3-ring binders. Get organized. Download and play something new in seconds. With forScore, your sheet music has never been better -- it's everything you can do with paper, and so much more."ForScore allows you to import pdf files of sheet music. Once the music is imported, you can annotate it with a number of different pens. You can create set lists to manage your music. You have access to a metronome, piano keyboard, and pitch pipe to help you rehearse. ForScore can even be paired with a page turner to help those instrumentalists who need to use their hands to play. This is only a small list of this app's capabilities.
The forScore app quickly became my favorite music app. It costs $6.99 in the Apple iTunes Apps Store. Give it a try!