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as for the ballet, you may find out about https://en.wikipedia.org/wiki/Nikolay_Tsiskaridze

also a big name in contemporary Russian classical stage. And here is the interview with him in the same...

well, the biggest of the biggest names should be mentioned: Valeriy Gergiev https://en.wikipedia.org/wiki/Valery_Gergiev

the BATON is his chief tool of trade, and it's worth listening to a close...