I'm a bit of a noob with Max admittedly--have been studying it for a mere 3 years now. I began making the basic patch used in this project pretty much as soon as I started experimenting with Max. My other two related projects, "Photic" and "Gagaku" use a variation of this same patch--a rather messy, convoluted approach to generative music-making, that I keep piling things on top of.
In this instance, the patch is used to create the various pieces using a combination of sample playback, synthesis (within Max), and triggering an analog synth. The downloadable app that is mentioned above has the live synth bits rendered to samples of course (it's a big download).
In the end, I just hope people will put it on in the background and do the dishes or wind down their day.