How funny to see this concerto mentioned just now - heard it performed two nights ago in Helsinki...first time I heard it live - what a piece!
Indeed, it is a very great piece. I have fond memories of seeing Peter Donohoe play it some years back in London. Took my breath away! (Reminds me of when I first saw Elektra
I have seven recordings, but I still think the first studio recording with Ogdon is the benchmark for this piece. I would love to have heard Petri play it, not to mention Busoni himself.
Lucky me, I have both the orchestral score and the two piano score- thanks to a couple kind-hearted mates.