I love Rachmaninoff - first heard the 3rd piano concerto when I was 13 years old over 50 years ago. I have many many recordings - but not the one you've mentioned here - will have to find a copy.It was recorded on mechanical piano and later in da 60's replayed with good equipment. This record feels kinda magic to me, cause it was 100 years ago but still sounds better than everything I've ever listened
My favorite Rachmaninoff pianist is Stephen Hough - any thoughts on how he compares to other pianists?