Are you the author? Why/how do you know?

I'm not the author. I thought you were asking the people of HN since you asked here rather than emailing the author. I've been interested in the esoteric programming language scene since 2009 and in my experience most of the work is done for the joy of it, and the joy of exploring intellectual curiosity. It's true that the author here could be an exception but, as I say, you should contact them directly if it's very important that you understand their motivation.

Well, it's posted here by someone for some reason. I didn't search for it, but was curious what the purpuse is of this idea, since I have a lot to do with MIDI, algorithmic composition and programming languages.