just weighing in to say how much I appreciate the Gerzon links. I knew him fairly well as a face on the improvised/ experimental music scene in London in the 80s - he was always there, standing at the back holding up a pair of calrec condensers at gigs by Derek Bailey, Eugene Chadbourne or Japanese punk/noise bands I have forgotten the name of and countless others - I think the National Sound Archive might have at least some of those recordings now. There must have been thousand of hours of them.
And mentioned he really was a gentleman and first and foremost a true music lover - when I planned a trip to Africa he gave me a lot of his time talking through the various mic, recorder and battery options and he talked to me about King Sunny Ade, Ocora recordings and other African music he loved. He did that for a lot of other people too - remarkable generosity.
When I first knew him he was working on the maths behind the compression algorithms used on minidisc players which I believe went on to be the basis of MP3 - am I correct about that? He had terrible health problems, which perhaps gave him a sense of
urgency to document as much as he could in the limited time he had but I am sure many of his ideas
went undocumented because he seemed to have a constant stream of them.