The Miracle Piano Teaching System is a MIDI keyboard/teaching tool created in 1990by The Software Toolworks for the Nintendo and Super Nintendo, Apple Macintosh, Amiga, Sega Genesis and PC. It consisted of a keyboard, connecting cables, power supply, soft foot pedals, and software either on 3.5" floppies or a standard, licensed NES/SNES/Genesis cartridge. When connected to the console or computer, a user followed the on-screen notes. Its marketed value was as a tool to teach kids and to play the piano. It provided hundreds of lessons, and was advertised as the perfect adjunct to formal lessons. Due to its prohibitive price ($500) and low sales, the keyboard with all of the original cables together are a rare find. Aside from being released in the United States, the Miracle Keyboard was also released in multiple regions within Europe. The European versions are, however, much harder to find. Some of the NES Miracle keyboards were also later converted for PC use - the Nintendo Seal of Quality on these boards was covered up with a piece of plastic. [source:wikipedia]