There was no separate recording mix in 1972. Kidd did that in 1973 and 1974, but not in 1972.
The word "matrix" has a specific meaning in this context.
At 1:03 PM -0700 10/24/04, Jim Powell wrote:
By "matrix mix" in reference to the Latvala cassette of 10/19/72 I don't mean Healy's "matrix" mix with audience mixed in, I mean a matrix mixdown off the soundboard, different from the PA feed. It doesn't sound like Betty. I don't have the official releaseof 9/17/72 & can't therefore say who recorded it but I bet it was Kidd. And this to.
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