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Critics and historians, he wrote with disgust to discographer Brian Rust, were “nothing but Integraters to mix white and Colored,” likely sponsored by “Communist from Russia.”

The anecdote has not preserved the inquisitor's name, but perhaps it was the discographer Brian Rust, the leading figure in this discipline of his generation, who has died aged 88.

Many obstacles lie in the discographer's path, but Rust persuaded companies to unlock their archives and tirelessly reproduced information on a typewriter – often several times over, as he was generous in sharing material with other researchers.

Its team consists of two technicians and two researchers, including Varchausky's friend Fabio Cernuda, regarded as Argentina's best discographer.