To go back to Jack's clip of Robin and Jimmy singing 'The Wee Magic Stane' - this came from a theatre performance to celebrate Scottish protest against the siting of Polaris on the Holy Loch within 30 miles of Glasgow.
Considering that the performers on view include Adam McNaughtan (of 'Hamlet' fame), Bob Blair, Arthur Johnstone, Ewan MacVicar, Ian Davison, Ronnie Alexander - all of whom have performed in folk clubs for many years, without crib sheets - will you take my word for it that the papers they clutch are actually the script for the inserted commentary, and were issued as a running order to provide the cue for whoever was next to perform?
The whole show was scripted by Gordon McCulloch, sitting to the bottom left of the screen.
And a grand night it was too, with lusty participation in all choruses from the audience without benefit of songsheets.