Modern music education program for children emphasizes the importance of creating a rich music environment in which children become involved as creative and active musicians. However, seldom do we see a music machine learn in such an interactive way. This project aims to take hints from the developmental process of children's music ability and build a machine which learns to listen, perform, and create music in an interactive and developmental fashion. Several machines will receive specific music curriculum and thus the difference between their behavior in response to music can be observed and analyzed. In addition, these music machines will be natural interactive performers in concert with human performers.