I passed along the response here to my source, who replied:
>Only part of the answer, I believe.
>The Boléro, publsihed as being conducted by the composer, was allegedly
>directed by the the Portuguese conductor Pedro de Freitas Branco.
>I rather doubt that, in 1930, Ravel would be in condition to conduct
>anything at all. His brain dysfunction, reason for the operation during
>which he died, would prevent him from keeping time. Give instructions to a
>conductor he certainly could, but I rather doubt the he could actually wield
We are far from my area of expertise and I will not re-enter the fray.
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