1. Master of ear training. The master of ear training provides a lot of music learning and practice functions, which helps users to carry out professional solfeggio training anytime and anywhere. The software covers intervals, chords, various modes, rhythms, melodies and solfeggio, and also includes a series of gadgets such as tuners, metronomes, simulated pianos and tape recorders. 2. Portable band. Portable band is an instrument simulator designed for smart phones. Now it has been extended to keyboards, guitars, drum sets and electronic drums, with multi-track recording function. 3. Perfect piano. Perfect piano is a piano keyboard simulator designed for smart phones. Using the real piano voice, you can learn the piano accurately. 4. Piano tuner. Piano tuner software is a multifunctional tuning service software for Android mobile phone, which is specially designed for learning and practicing piano. It can tune piano equipment at any time, has different tone selection and adjustment, and supports automatic tuning and manual tuning.