NoteTeacher with Metronome and Tuner is an Android application developed by Leonid Arefev. It is a free educational game that helps users improve their note identification speed and ability to read sheet music. This app is perfect for those who are learning music and want to challenge themselves to increase the speed at which they can read music notes and play the guitar.

The application offers a variety of features such as a guitar tuner (NoteTuner) and a metronome (NotePulse) to help users improve their skills. NoteTeacher supports basic musical nomenclature (C D E F G A B) as well as German musical nomenclature (C D E F G A H). The app increases in difficulty over time, allowing users to truly learn to sight-read music notes effortlessly. Whether you are a beginner or an experienced musician, this application is an excellent tool to enhance your music reading skills.