Any time something of popular historical interest like this pops up I think about that.

If you've not read it then Robert Harris's (factual) book about the affair is entertaining, not least because such a broad sweep of dislikeable characters were undone by greed and folly!

Confiscated during the revolution, kept by the national library. That's a bit different to "forged on schoolbooks with a Bic pen" provenance-wise.

> By coincidence, Goy had been looking at other documents Mozart had written for teaching just weeks earlier

Color me sceptical

Even inside the tiny niche of the classical music history world, a book of daily exercises - written for some now-obscure student, and owned by a national library - is actually a pretty minor thing.

Very few counterfeiters bother doing nickles and dimes.