Is there an app for my Android or iPhone?

Yes! Music Teacher's Helper has both.

Here's the link to the iTunes store for the IOS version of the Music Teacher's Helper app:

http://itunes.apple.com/us/app/music-teachers-helper/id500896977?ls=1&mt=8

Here's the link to the Android Play store for the Android version of the Music Teacher's Helper app:

https://play.google.com/store/apps/details?id=com.musicteachershelper.android&hl=en

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