I've created a simple instrument definition for the Renoise Guru plugin. You can use the program/midi keyboard and edit patches at the same time. I don't know how to do the fancy stuff yet, and load/save patches doesn't work yet. Please post any suggestions or enhancements, I'd love to make it better or modify the code yourself. Have fun! Guru for Renoise: http://www.renoise.com/tools/guru midibox_sid.zip