Very impressive investigative reporting. Just a minor note. Whilst performance this might be the greatest, a few phrase seems out of place. culture wise the Alexandria suffer a bigger lost to humanity.
The scale is different, but the permanence is the same, and that's very profound because we tend to take it for granted that great works will no longer be lost like they were in the past. It's interesting to think about what will survive and what won't over a period of thousands of years. It seems almost unthinkable that any of the main Beatles catalog could ever get lost, library-of-Alexandria style. But on a scale of thousands of years, governments and nations will change, nothing is certain, maybe the whole Beatles catalog could indeed become permanently lost if the world gets taken over by dystopian censors. On a long enough timescale, anything's possible.