That's my biggest project! I have build 1:1 size play ground that use smart sensors to make electronic music
IR distance sensor, piezo sensor and flex/ bend sensor were implanted on the instruments witch made from metal tubes and plastic.
they are all connected to a computer that use Max MSP patch witch i have programmed.
The algorithm create loops from samples that the user record.
and in this method he can simply create complicated music without being a musician.