Just what exactly is a midi file, anyway?
Midi stands for Musical Instrument Digital Interface file. These are artificial, synthetic songs generated by computer from original recordings. MIDI files on the Internet can be played with the help of a media player application, such as Crescendo or MS Media Player. They are often used on the Web to avoid copyright infringement claims. Whereas original recordings are usually copyrighted intellectual property, synthesized midi files are merely computer-generated facsimiles of those recordings and can be shared freely without legal liability. That is why midis are used on this website in lieu of original recordings.