We don't offer a MIDI of the full song but of the bare chords that we have transcribed from the song, expressed by piano synthesizer.
This is helpful for those users who wish to use the MIDI file with score writing or digital audio workstation software in order to create their own arrangements.
However, if what you're looking for is a music file of the song itself or of a karaoke backing track, we're really sorry, but that's not something that we can help you with.