Using the analogy of language brings up an interesting thought. A living language is not a rigid thing. Over a period of time it changes, it takes influences from other languages, the fluent speakers bend and shape it, play with it distort it and break it,s rules. There are those that cannot accept the way the language changes and will spend their energy wailing about how the language is 'going to the dogs'. There are some that will spend their life trying to convince others of the importance of the correct placement of an apostrophe. No right thinking person would suggest that we all revert to they way the language was spoken in the dark ages. Surely the language is enriched by all the nuances and diversions that shape it's development.
And so it is with music. We can't be sure how music was played in the past and so the 'traditional' way of playing at any given time is transient. However the best music and language builds on what has gone before it is not diluted by each generations influence but enriched by it. There will be pedants that take the protection of a tradition too far and so attempt to stifle innovation from within the tradition. History tells us such endeavor will be futile.
Dave