the raw digital code of everything that moves around inside your pc down to the representation of the letters on this page. You get to them with a hex editor of which there are hundreds available on the net, but not recommended unless you know what you're doing since a mistake of one bit could mean everything grinds to a halt.

There is nothing new about the loading arrangements. The KN1500 which came after the KN3000 could load 3000 files but the 3000 could not load 1500 files without modification, and every generation has been similar. I've been been digitally editing the presets from other non-loading machines to use on mine since the days of the KN800