Finally made it though it. Nothing really of interest for audio.
Jerry
Copper, gallium, graphene and excitation "demons"
...and the next round of cables?
"the research suggests that metals and other materials are teeming with weird vibrations that physicists lack the instrumentation to understand."
https://www.wired.com/story/an-invisible-demon-lurks-in-an-odd-superconductor/