there are tons of resources for midi electronics: www.midibox.org www.doepfer.de www.ucapps.de www.monome.org "DIY midi" google search get "art of electronic

there are tons of resources for midi electronics: www.midibox.org www.doepfer.de www.ucapps.de www.monome.org "DIY midi" google search get "art of electronics" by horowitz and hill as a reference