When is it acceptable?

Someone needs to write a history of vibrato. Clearly this should be Roger Norrington: to judge from his words on Radio Three recently he has given the topic much thought and come up with some historically-based conclusions. I suspect he isn’t going to do it, though, because, like me, he is too busy chiselling out a new -ism on the back of his research, by which he hopes to effect yet another revolution in performance practice.

But the bare bones of the story are straightforward enough. Vibrato, both in orchestral playing and in singing, became acceptable in classical music-making no earlier than 1920. It had existed before this in more vulgar circumstances, but was resisted at the most serious level as being a cheap trick. Part of the written history I am proposing would examine just how something that was once derided could so rapidly become all the rage. There must be many modern parallels here: in styles of clothing, in habits of speech, in modes of eating.