After 9 years we decided to finish our Vic-20 megademo "properly". Now with fast-loader, 5 new screens and various bug fixes. (you can hear the samples properly on hardware for example)
Various music routines used in this (depending on space, some of them were 256 bytes for music + driver, ulp) but the majority were done with my 'OrbTraxx' one, the source of which is here. If you don't fancy typing in hex bytes well, watch this space.