Matthew Fisher - that's the Procul-Harum-organist's name no one can seem to recall, even thought the recent news story was all about HIM!
Not likely (to answer the Q about which rock organists will be remembered) then that he will be,
in that thems up above can't recall him when he's a current topic! Ya gotta larf.

Rock organists?
Well, Deep Purple's Jon Lord wrote a big concerto for group and orchestra - was a live LP rec from the Albert Hall
- wi' the classic-world's reknowned Malcom Arnold conducting
- will we remember Mr Lord? Doubt it (though I can obviously recall it all at this stage!)

Keith Emerson (Emerson Lake and Palmer) - 'Pictures at an Exhibition' and all that - surely he will live on in history - mebbe not!

Aw, I give in - reckon you're right. Hugs - Dunc