QUOTE(Silver pianist @ Dec 6 2005, 03:54 PM)

It seems the piano (organ?) versions that I have are all written in 4 parts (a bit like voices in score) and I find them soooo difficult to sightread as the chord intervals between the parts in each hand change subtly with almost every note.
I agree with you on that one, scores written for SATB are much harder to read than those written for piano (even if it were the same thing written with three notes in the right hand and one in the left most of the time) especially when there are intervals that I can't reach, usually tenths, and have to play some notes with the other hand (but don't realise until I try to play that I can't reach

). I think the two notes in one hand and two in the other throws off my shape recognition: I'm much better at recognising three note chords than two-note chords, and certainly one note with one hand and a three-note chord is easier than two two-note chords.
I can't really sightread four-part carols too well yet: I have a go every Christmas, I'm just hoping that eventually I'll be better at sightreading (with practice of course) and will be able to do it. I don't really find that missing notes out makes it much easier; my brain seems to want to read the other notes or get distracted by them anyway

.
Sorry, not much constructive advice but I'll join you in saying that it's difficult.