OctaMed was a program for making music on a Commodore Amiga computer, it had a synthesizer, it allowed you to load samples, it used a maximum of four audio or midi channels.
Using a program meant that someone had filled one or more floppies with rules and data, so people like these hackers who assembled cracks couldn't use it to insert animations and music into other floppies that were already full.
Their work meant redoing all the logic, origin, development and physics of a multimedia starting from nothing, using a minimal amount of data, creating ascii art and some algorithms still in use in modern browsers for viewing animated 3D objects.
Going back to this OctaMed synth, you could draw such minimal waves that we felt like cavemen with rocks in caves, when they made graffiti.
Everything else was controlled with cascading sequences of numbers.
It seemed like Matrix.