sorry, cross posted with Dave there, I was replying to furferret.

Rereading your post though furferret
Pretty rediculous if you have to try to remember where you heard it sung a particular way. If it got in your head you might not even remember where you heard it.
that's not quite what I'm talking about, most of the examples I was referring to are complex harmony arrangements where the performers in question must have sat down with the CD and worked out what the parts were, otherwise there's no way they could have reproduced them that closely. Can't forget doing that, surely?
Maybe I was a bit unfair including Jim Moray in that as with his it was the phrasing & the fact that it was note for note & word for identical to Chris Wood's delivery that I was referring to, possible I suppose that could be a bit more subconscious than the learning of harmony parts.