As you say my erudite Sock, notables in this clip, Tippie of classical guitar shown his hand ( piddly poor pun intended ), never warmed to Gibson EBx basses, yet loved SG guitars ( Iommi though were custom copies like Angus did as fame provided the means ). Its that quirky self taught style of Ian with flutes, recently have been on the www, gathering real information from interviews with him about early and late flute machinations.
Ian had all the bad habits that self taught can impose, yet overcame to the point of his own style is engaging to my ear, over a long period. He used early flutes that were affordable, somewhat same here a time past, bought an ex school Yamaha that had been used to bash the kids into line...it was well damaged, $47 delivered. 12 months later, all repaired and another skill earned. Ended up repairing many woodwinds for others... Haynes "fix it yourself" sax book in hand, not joking.. side comment what i learned about Laverda suspension oil held great sway for selecting an oil for flute and sax key lube, something the author of the Haynes publication had no clue whatsoever. Ramble... i can do that... if not obvious, a smile. j.