I have this vision of purchasing a guitar with midi capability, then playing an original tune into piece of software that supports midi such as Cakewalk by bandlab. After the recording I would have a midi file of my original work. That midi file could then be loaded into software that converts midi to an actual sheet music score. And walah, I would have printable sheet music for my original score complete with the guitar tab for it. Is this feasible? Has anyone actually done it, and how well did it work?