The MKS50 is capable of playing ONLY 6 notes at a time. It is possible to have each voice on a separate channel, but you need to set up the module for use as a guitar sound source. That was the original idea - as a module for a midi guitar with each string playing a different tone voice. Since the maximun number of simultainious notes is so low - the MKS50 is not a great choice for computer music. There is just not enough note power.