This is the weirdest thing I have ever seen. Doing exactly what it says on the tin, this show features a range of classics from the history of rock music reinterpreted in Middle English by Pete Morton, aka Geoff Chaucer Junior, joined on accordion by a self-flagellating monk, for absolutely no discernible reason. Morton's knowledge of the vocabulary of both rock and roll and Chaucerian idiom is second-to-none, and even his pronunciation is credibly authentic throughout.All of which might suggest quite a specialist audience there can't be a huge number of people at the centre of this particular Venn diagram but the room is mostly filled by the sort of pleasant-looking middle class old people who look as if they probably remember the original versions (of the songs, not the Canterbury Tales). Many of them already know the words. The medieval ones.Don't get me wrong I had fun, my perplexed frown frequently splitting into a reluctant grin at Morton's double-layered riffing. Key examples of the sort of thing I mean: 'I ain't gonna work on Lindisfarne no more' or 'I was born in the Humber Bay'.Morton is a lively performer, though at times cringeworthy and a bit embarrassing to watch as he attempts Elvis-style dance moves in mock-up 14th century costume and tells appalling, anachronistic jokes. Clearly it doesn't take very long for this to get wearing, though some smart rewordings liven up all the repetition.This isn't a terrible show; I just genuinely have no idea why anyone ever thought it needed to exist.