Hi erik! i'm the music/audio guy of the site. First thank you for the precious feedback and encouragement :). Your description at the end of the reply is accurate. There are 10 to 15 instances of synths/sample based stuff, which take midi imputs based on the following criteria:

A list of frequencies. A list of note durations. A list of amplitudes.

All this process is triggered by a set time (in seconds) which, going in tandem with a selected chance rate of generating the note, makes a music event.

Having this running on a server would be hard for us, so the decision to make a long export of these "sessions".

I agree on the fact that Stochastic music has a certain academic connotation and standards for a composer, standards that are far from being achieved from the tracks on the site. I will try my best to make new soundscapes even more dynamic in the future :).