znet_sequencer 0.1 is a Puredata patch that generates different sounds with a "ip sequencer". Network traffic is captured by pdpcap, ip sequencer generates a different bang for each protocol (ip, tcp, udp and icmp), and the sound system has the assigned sound for them (sampler, drums, noises, etc...)
So, the "music" (or noise) is generated by a sequencer based on IP network traffic, so as we surf the web it generates a song.