Piano is the king of instrument with a wide pitch range and the coverge of nearly all music tones of the musical system. Great musicians used piano to compose lots of classic songs which are popular today. "piano" chooses the music scales that are suitable for children's pitch range to enlighten children in music through free performance and guided music learning. It stimulates childeern's desire of musical performance, cultivates their good musical accomplishment and promotes the development of their right brain.
