Welcome to the great folk music time machine. Just keep an eye on the ol' year dial though. It acts up sometimes.
Like just now - Billy Bragg is closing the first half of his show. The now grey-haired 54 year-old English singer-songwriter who came to prominence as an entertainingly angry young man in the 80s is singing All You Fascists Are Bound to Lose, a Woody Guthrie song from 1942.
With Bragg at full tilt, it's certainly stirring, the hillbilly-against-Hitler anthem of the original sounds anything but like yesteryear's propaganda.
The song was one of many recorded in 1998 by Bragg and American band Wilco for the Mermaid Avenue album, since expanded into a three volume box set to mark this year's 100th birthday of American folk Godfather Guthrie who died in 1967.
That project, instituted by Guthrie's daughter Nora, was mainly aimed at turning boxes of Guthrie lyrics, which had gone unrealised, into recorded songs. The other aim, says Bragg, in one of his many engaging, funny digressive between-song chats was to remind there was more to Guthrie than just being the Okie-folkie writer of This Land is Your Land and Dylan's musical forbear.