One could say that Jon Lord played a wicked Hammond as well.  & Richard Wright ain’t no Casio player.  …Oh, & some hep cat named Jimmy Smith…but who’s countin’.  [Sure looks like Bukka Allen, of some obscure band called NFU, holds his own in a cloud of Marlboro smoke as well….]  & this no-name Philippino Hammond player I saw several times in some bar on BC Street in Okinawa back in the mid 80s…was no slouch either, …amazing really. 

Not sure if it has already been mentioned, but to hear a little bit o’  Billy Preston nockin’ on heaven’s door with a clavinet:  Warlock on Stadium Arcadium.  I read:  Bedridden, he got out of bed to eagerly record his part after hearing a tape…then went right back to bed.  ........Hawkwing you to your grace, brother; peace.