A silent video of John Connett's pattern,
as published by A.K. Dewdney in his "Computer Recreations" in the Sept 1986 Scientific American.
It's only 3min 27sec, but it doesn't compress much and the file is 1.9 Gb
so for bandwidth reasons it's best to download it from
  https://pjb.com.au/comp/free/connett.mp4
and play it directly from your local disc.
There is also the script make_connett_video which synthesised it

The Droplet Video, 65sec (and only 3.6 Mb !)
also to be found on youtube (lower video-quality) at
    youtu.be/yLo-cU9gPlA
There is also the script make_droplet_video which synthesised it,
using the colours.ps and fonts.ps PostScript libraries.
The audio comes from muscript
played through the fluadity synthesiser
using the Bank5 SoundFont
as created by the MIDI::SoundFont module.