A security research talk demonstrating how crafted MIDI files can achieve remote code execution on Yamaha synthesizers, exploiting vulnerabilities in the firmware's MIDI parsing logic.
Illicit gramophone discs made from discarded X-ray films in the USSR (1950s–60s), a black market method of distributing banned music — Elvis, Beatles, Rolling Stones pressed at 78rpm on medical X-rays, playable only 5-10 times