Kudos to this guy for not only coming up with this idea, but following it through to completion! He took an old electronic organ ('70s vintage), and replaced the innards with his own circuits. The entire project is designed to enable to operator to accurately reproduce tunes from video games! Not only did he pull this off, but he apparently learned to play a bunch of tunes. It's clever, so I like that. His commitment to a rather silly project, is commendable too.