I have had my copy of the CD for about 5 days so far and have played it at least once every day. I am very pleased to have purchased it. I quite like all the pieces on the CD, including the old workhorse - Rachmaninov's Vocalise which I am very fond of, providing of course that I don't listen to it too frequently! - but the standout work on this CD for me is indeed the Bortkiewicz Sonata! It does indeed sound like Rachmaninov, especially in the opening movement and as per the liner notes, there is a thematic quote from Rach's second concerto. I was not overly aware of this specific quote but was left in no doubt whatsoever that I was listening to music which clearly at times sounded like Rachmaninov (and it goes without saying that I am a huge Rach fan!). Also in the liner notes - something I missed initially - was the reference to a quote from Kalinnikov's First Symphony(another composer whose 2 symphonies I return to very often indeed!!!!). Picking up on this reference, I listened again very carefully and there it was at around 3:41 into the first movement and repeated again around 4:20! These references aside, the music is still very much Bortkiewicz! It really is a most impressive work, with moments of drama, lovely lyrical passages and most of all strong and memorable melodies, together with superb playing- a real find and I know I will listen to it often! Thank you Alan and Mark for your recommendations.