Flexitime for the violinist or tuba player (6)

I believe the answer is:

rubato

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'flexitime for the violinist' is the definition.
I can't tell whether this definition defines the answer.

'or tuba player' is the wordplay.
'player' is an anagram indicator.
'or'+'tuba'='ortuba'
'ortuba' is an anagram of 'RUBATO'.

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(Other definitions for rubato that I've seen before include "Expressively flexible tempo" , "Rhythmic flexibility" , "Modified rhythm" , "Departure from strict tempo; bar out (anag.)" , "(Musically) having a flexible tempo -- our tab (anag)" .)

I've seen this clue in The Globe and Mail.

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