Ah, thanks. I wasn't certain that the C-64 or any other computer at the time that could make sounds didn't have the same little demo program. I guess the choic

Ah, thanks. I wasn't certain that the C-64 or any other computer at the time that could make sounds didn't have the same little demo program. I guess the choice of music paired with the visual explains the flashbacks. As far as I know the C-64 had the same program first, Amiga did it better, and this part of the video was an homage to some old C-64 demo that I wouldn't know about. The visual effect was common on any computer that had pixels instead of just 80x24 blocks. The music (however generated) was always some bit of very classical recognizable by almost anybody so especially church music. The same sort of little demo program was on everything that could pull it off. I was looking for a logo or a window or something else not so tenuous.