In honor of 808 day, here are eight algorithmically-generated beats created using Lindenmeyer Systems. The L-System code was written in Supercollider, and it uses a set of rules to generate rhythmic patterns. Each pattern uses a different set of rules. The generated patterns are self-similar, so unique rhythmic motives recur in each of beats, but the rules are complex enough that the patterns never sound repetitive.
Roland TR-808 samples are from Samples From Mars. These beats are free to download and remix.