As of 7/7/2024, I have come to see the 7/27-28/70 Matrix run with a new understanding. It was NRPS opening and Acoustic GD following. What's more, I have inferred that the historical 7/29/70 NRPS tape is probably instead 7/27 - easy numbers to confound when written down.
https://jerrybase.com/events/19700727-02