The overall intended meaning is actually a little unclear, perhaps from lack of the surrounding context. However, here's one suggestion that I think does at least make some sense, and reads less clunkily:

"Elegant, bold, precise gestures convey the conductor's will without false virtuosity."

We really need to know if this is one particular gesture (which I doubt), or just the ensemble of the conductor's gestures? It seems to me that the source language (and it might help to know what it is?) could be one of those languages like FR that sometimes uses a def. art. + sg where in EN we use a 'generalizing' plural with no article at all; if this were the case, then it might help to try it this way, as I have suggested above.

Secondly, the original 'literal' translation is ambiguous: ought we to read that "the will of the conductor interprets (the music) thus" —

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Note added at 2 hrs (2012-04-13 14:20:03 GMT)
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Well, it is a common enough stylistic device, as in discussing a picture "The line is resolute..." — when we know perfectly well the picture has more than one line in it!

However, I would studiously avoid 'gesturing' — that really means 'the act of using gestures', as in e.g. "All the gesturing in the world won't stop the man from falling off the ladder"; and like 'posturing', runs the risk of being associated with a negative connotation, definitely unwanted here!

"the way s/he uses gesture" might be one way of avoiding 'gesturing'.