Some contributors to this thread (including Jerry) have said that a version might be so good that you could never imagine anyone doing it better. I know what they mean, but I would prefer to keep an open mind, and optimistically hope that, yes, someone might even do a better version in future - why not? Standards are meant to be set, aimed at, and surpassed :-)

Anyway, I don't let the fact that people have already done better versions of songs than I can, stop me doing them ;-)