Why doesn't factory have a midi?

[VincentAraneo]

I wondered this because unlike many supertux musicians that do have midi in the game's media repository, factory doesn't have a midi. For the newcomers, Factory was a discarded music for supertux, I don't know exactly who was the composer or creator of the music but it was made since the development of milestone 1. So, is there a midi for factory or can you download the midi?