We forked the original population at 530 generations and reconfigured it to use pre-recorded drum sounds. Here's the link to the new channel. The drum sounds will take a while to appear because the incorporation of new elements relies on mutation.
We have also switched on "homologous recombination" (the implementation is not 100% faithful to nature, but it has the same effect) and upped the recombination rate to compensate for the fact that crossovers will now be less destructive. In English: during the mixing of parental genetic material, basslines will be swapped with basslines, and melodies will be swapped with melodies, allowing more specialisation of the sounds and melodies.
Image attribution: Rossco (Image Focus Australia)