Thanks, LarZ ! The "show more" blurb under the vid seems to suggest that's from the 1960s but the look of it led me deeper where I found that's from a film, SESSION MEN, by Gil Baker. Turns out there are actually several documentaries on that subject, particularly the LA crew(s).
As for you, Skip, I know you've got some stories up yer sleeve, esp as pertains to working overseas---don't hold back !
In the meantime, take a look at this stellar perf BUT NOTE THAT BEYOND THE FANTASTIC PLAYING, Haynes's GTR ROADIE IS DOUBLE CHECKING HIS NEXT GTR AS HE BRINGS IT OUT (@ 8:50 +) ! kATS & KITTIES, THAT'S SHOW BIZ !!!!!