The 1954 definition is just fine, in itself, and I would prefer to be able to use it this way because it's clear and precise, and a useful concept.

The problem is that for most people the 'f' word long ago lost it's original meaning through the process of semantic change - http://en.wikipedia.org/wiki/Semantic_change

For some of us, at least, it's a damned inconvenience that the 'f' word is now so unclear: these days it often just means 'what happens in clubs and festivals' or 'anything performed by players of the acoustic guitar'. At that level it's just a label...

My guess is those of us who are interested in the areas that the 'f' word used to stand for had better get over the fact that most people no longer understand it in the way they do, and simply stop using it except among friends.

In the meantime, perhaps some of the folks who mount the barricades on the other side of the discussion might for a moment reflect that on this side we're saddened by the loss of a word that describes something we're enthusiastic about. Perhaps they could feel just a little sympathy before they start shouting again...

Gavin