I vaguely recall some grumbling about how the Abbots Bromly Horn Dance has been altered from its original context and therefore no longer valid... whatever valid means...

I have a musical friend who is Greek Orthodox and he loves all kinds of liturgical music... so whenever I find something, I share it with him... one such CD was of Russian Orthodox music performed by a classically trained singer... and my friend was quick to point out how this was a corruption of the intent of the music... which is only to be sung as a religious rite, never a performance.

Somewhat akin, I think, to how the Koran can't be translated from the arabic and still be valid.

So, I guess it's true that you can't please all of the people all of the time... so why try