Egon Bondy's Happy Hearts Club BannedThe Plastic People of the Universe

Most records are made to be sold; this one was made to be hidden. Egon Bondy's Happy Hearts Club Banned — the wry title turning a Beatles album inside out — was recorded clandestinely in communist Czechoslovakia by The Plastic People of the Universe, a band the regime had driven underground for the crime of playing the wrong kind of music. To own it is to own an artefact of resistance: a record smuggled out of a police state, pressed in the West, and returned as evidence that art could survive even where it was forbidden.

The Plastic People had formed in the wake of the 1968 Soviet invasion that crushed the Prague Spring, taking their name from a Frank Zappa song and their aesthetic from the Velvet Underground and the Western avant-garde. In a country where rock was treated as ideological poison, simply existing made them criminals. Stripped of their licences to perform, they played in secret — at country weddings, in barns, and, for these recordings, clandestinely at Houska Castle, setting the poems of the dissident philosopher Egon Bondy to dark, droning, saxophone-scarred rock. The music is raw and strange by necessity: this is what freedom sounds like when it has to be made in hiding.

Its importance is inseparable from what happened next. In 1976 the regime put the band on trial — an attempt to make an example of a few long-haired musicians that backfired spectacularly. The prosecution of people whose only crime was making music galvanised Czech intellectuals, and Václav Havel and others cited it directly in the founding of Charter 77, the human-rights declaration that became the spine of Czechoslovak dissidence and, a decade later, a thread running to the Velvet Revolution. Few records can claim to have helped change a country's history; this one genuinely can. The band's persecution turned a small underground into a symbol, and this album is that symbol's document.

Because the music could not be released at home, the tapes were smuggled out and the record assembled and pressed abroad in 1978 — which is why the original is a Western, not a Czech, object, a piece of Cold War samizdat rendered in vinyl. Hearing it now, decades after the wall fell, the crackle and murk are not flaws but testimony; you are listening to something that the state tried to erase and failed. That context transforms what might otherwise be a difficult avant-rock record into one of the most morally weighty artefacts a collector can hold.

The band took its aesthetic seriously as art, not just protest. Led by the saxophonist Vratislav Brabenec and the bassist Milan Hlavsa, they built long, ritualistic pieces indebted to the Velvet Underground, Captain Beefheart and free jazz — deliberately uncommercial, deliberately strange. That they made something this artistically ambitious while hunted by the secret police is part of what gives the record its awe: it isn't a pamphlet set to music but a genuine avant-garde work that happened to be illegal.

As music it rewards patience — hypnotic, bleak, oddly beautiful, closer to the European avant-garde than to any rock mainstream. But nobody comes to this record only for the music. They come because it is proof that a handful of people kept making art with a boot on their necks, and that the boot, in the end, lost. Prague's map has grander tourist sights, but few carry this much weight.

More than four decades on, Egon Bondy's Happy Hearts Club Banned stands as one of the great documents of art under tyranny — a banned record that outlived the regime that banned it, and the truest grail of the city that first tried to silence it.