Top of the Pops: The Story of 1976, BBC Four

Thank goodness for selective memory, because although I remember that pop music had something of a mid-life crisis between the sequin explosion of glam rock and the spittle tsunami of punk rock, I had been blissfully spared comprehensive recall of all the grizzly details. That is until I watched what turned out to be another of those cheap-to-make caffeine-charged documentaries which goes off on so many tangents that it’s hard to recall what it was meant to be about in the first place.

Piccard in Space, Queen Elizabeth Hall

Out Hear: Exaudi play John Cage Song Books, Kings Place

At its best, and most preposterous, John Cage's work can be a mind-cleanser. The overwhelmingly silly randomised conjunctions and ontological punning of the great Zen master of the 20th-century avant-garde can coax and trick you into letting go of categories and judgments, scale and expectation, and just letting yourself get swept along with the gloriously complex and profoundly nonsensical multidimensional parlour games.