Sight Reading Practice is a great app to practice your sight reading. It displays notes on the screen, and you simply need to play them on your instrument. The app uses the device's microphone to listen to the notes you play in order to give feedback (no cable or extra hardware required!) This app is currently built to work with pianos. However, practice mode should work just fine with any instrument capable of playing notes from A1 to A6. There are currently two modes available, a "Practice" mode, in which random notes appear one at a time, and a "Score" mode, where you can test your skills trying to play one of 10 included classical scores. All current functionality is available for free without ads. In the future, we will release a pro version which will include structured sight reading exercises as well the ability to play any MusicXML score. Happy playing!