I worked on the web app that generated it to and from the train to New York and felt like I was almost done when I sat down to "finish" it Monday night. Very very predictably, I was not almost done when I sat down to finish it Monday night. I ended up finishing it at 5 AM.
It is a fork of Flooding, hacked up to 1) make a stack of five riffs with random choices from a 15-limit tonality diamond and play them twice 2) see how close any of the resulting dyads are to ratios in the 5-limit tonality diamond (which generally sounds more consonant) 3) cull the notes that aren't close "enough" 4) play the resulting stack of riffs twice 5) fill in the holes in the riffs with random choices from the 11-limit diamond. Then, it repeats 2-5 as many times as you like.
I never got it sound the way I hoped it would. The problem is a core of pitches that fit the 5-limit diamond gets established and very rarely gets displaced. So, every 12 bars a bunch of random notes shows up and mostly get bounced. Which is more or less how evolution works, but I hoped it would sound more exciting.