Reading Music is a free application available on Android developed by AndroidAddict. It is an app designed to help users learn how to read music. The app offers 7 different keys to choose from, including Treble Key (G2), Bass Key (F4), Baritone Key (F3), Tenor Key (C4), Alto Key (C3), Mezzo-soprano (C2), and Soprano (C1).

The app displays the notes on the staff, and the user must click on the right answer from the buttons below the staff. The users can choose to display colored notes and buttons to learn better. They can also see the right answer when they are wrong, choose the difficulty level from very easy to very hard, choose the number of answers and display duration, and choose between A, B, C, D, E, F, G, or do, ré, mi, fa, sol, la, si. The app also offers vibration on wrong answers and other fun settings.

Overall, Reading Music is a great app for those who want to learn how to read music. The app is user-friendly and offers a variety of customizable settings to make learning easier and more enjoyable.