Yesterday I borrowed a friend's set of 3 cassettes labeled "Matrix 12/16/68," which he informs me some people think are actually in part or in whole 12/24/68 and I discover that one of them does begin with what I have described as "jam #1 10/21/68."
I'm going to catalog & compare all 6 of these cassettes as I did with the "10/21/68" material & post the results. Transcription to DAT with the addition of the timing greatly facilitates this process. I wish I had a way to check the speed of these tapes, old cassette machines being what they too often were. But with what standard to compare a unique jam?
