Oh Jeremy, wherefore art thou...
In any case, it doesn't surprise me that Jeremy is pictured in TPO as those kinds of pictures don't necessarily mean there are playing on it. Like when they lip synch on TV shows and music videos, those don't always measure up either. Hopefully ChilliD can back this up with a list of such other relasses? (Chilli - wherefore art thou?)
Jeremy did confirm here that he did play the piano on Oh Well Part 2 (though many would not consider this a TPO song since it originally was released as a single only and not on the original copies though WYS & MD were booted off the vinyl TPO's in the 1977
reissues (though not the cassettes).
In any case, hopefully Jeremy can clear this up for us here as I've always been curious about it as well.
John