Thomas,
Wow, so glad I stumbled on this thread while searching for info on some quad classical recordings!! Have only had time to read the introduction to your archive you wrote dated 3/29/15 but that was captivating in itself. Will definitely read the remaining articles as time allows. Thanks so much for contributing this wealth of information to the forum!
I was only 21 in 1969, but it seems like yesterday in some regards, and just a couple years later was a recording engineer at Capricorn Records. My expertise was electronics generally, and magnetic tape recorders in particular, not music production. Had the privilege of working with some great musicians in the rock & roll arena but nothing as impressive as classical or jazz artists. After my time at Capricorn was the southeastern U.S. sales engineer for Studer , who, as history has proven, manufactured possibly the finest tape mastering machines ever made. They were mechanical works of art in my opinion.
Only mixed & mastered one quad LP - Eat a Peach, Allman Brothers - in my career but that was a thrill to do. We had a Tom Hidley designed quad control room with an API console with quad panning capabilities and Studer recorders w/Dolby A so the mixing environment was pretty good. This was the first of only two quad releases from Capricorn I believe - the other being "Live at Fillmore East". So thanks very much for helping invent quad recording and mastering!! You and your compatriots made possible one of the best memories I have from that era.
Best,