Possibly also with the ability to record. This would be an intelligent music trainer and also provide accompanying instruments to simulate playing in a group. You can buy cdroms that sort of provide this for musical instruments, but this would have intelligence and would provide training exercises and and an accompaniest as you play. Version 10.3 would detect egregious mistakes and suggest exercises to resolve them. Musical Jungle Gym Kids build complex structures with bars and squares that play music when touched.
Kids specify the musical relationships between the pieces.
They can then run around on them to make music or set their cats free on them. This can sense colors of everything, so if kids put it on some places or objects , it plays music according to the color. Everything has color, so this allows kids to play with everthing in their environments. Two swords are connected to computer. So, two kids can collaborate to play a music intentionally.