Optiganally Yours in Hi-Fi, as I understand it, was made using the original high-quality masters from the recording sessions used to make the loops that were optically encoded on the low-fi discs used by the 1970s Mattel Optigan organ. I believe it also includes outtakes that never made it onto any discs.

https://optiganallyyours.bandcamp.com/album/o-y-in-hi-fi #robcrow #peahicks #optigan