That angry taper banter is absolute gold.
As an aside, the new '82 Red Rocks references, IMHO, are the Nak 700s with DBX noise reduction that were recently transferred from my Beta copies. Here's 7-28:
https://archive.org/details/gd1982-07-28.142567.Anon.Severson.Weber-Small.Donaldson.Ammons.Noel.t-flac1644
More epic, however, is the same source from 7-29 which features an extended explosion by Phil like no other, which no other taper captured nearly this well. The board is useless, as it actually distorts (more like cuts out) during this savage passage; watch your levels...but I suppose that is for tomorrow.