light learn sight read music is the most complete app on the market for learning sight reading. You can play all kinds of music, from your phone or tablet, and the app is completely free. The app includes different sections, which you can switch between, so you can start with the one that suits you best. You can practice sight reading with the help of the answer key. The answer key is right at the end of the song, and it will help you identify the music note you are hearing. The app has different options for you to choose from, such as a guitar, violin, trumpet, piano, or organ. You can also choose the type of music to practice, from your phone or tablet.