These two piano concertos are marvelous and anyone who doesn't own a recording is missing out, big time! The 2nd, commissioned by Wittgenstein, is for the left hand (naturally) but you would not believe how rich and full the solo part sounds. It is Rachmaninoff-ian in its style and, I think, the best of all the concertos written for Wittgenstein. Although overshadowed, perhaps, by Ravel's and others - the Bortkiewicz is the most accomplished.
The Third Concerto - beginning in the minor key and in a somber mood (Bortkiewicz suffered dearly through two World Wars) it nevertheless continues to brighten as it progresses and, finally, ends with bells tolling, in C Major - an overwhelming coda to a magnificent concerto.
Get this disc!!!