The orginal implementation ran autonomously but the tracks lacked the (often criticized as predictable) build up/down structure so critical in forming a flow. Rather than trying to implement such a complex concept in such a simple and elegant piece of code I decided this task should be performed by a human.
Translation: "Programming it to arrange properly and do decent chord progressions was too hard, so I gave up." :lol:

Given that arrangement is arguably most of the battle in making a completed track as opposed to just a loop or arp, I think that the jury's still out on this one.