The Rorem Piano Sonata on this disc is the only one of I've heard, but just in case you're a Rorem fan, I write this for those who may be seeking something rare and special.
Katchen's performance of this sonata is the only one I know of, and it's a doozy! Rorem (whose symphonic, organ, and vocal music is more readily available) outdid himself with this daring, charming, varied and entertaining bit of music. It's four parts are succinct, vibrant statements that show both Rorem's influences (French piano music, Impressionist melody, Le Six) and his aspirations (drama, minor key hints at atonality, expressionism). It's emotional stuff, and it comes so fast at times you can hear Katchen, masterful player, working hard to keep up. He's required to switch, instantly, repeatedly, in tempo and mood, and he does it every time, in an out and out battle with the piano.
The Overture is grand, exploratory, stating clearly all the themes and hinting at the variations to come. The Tarantella is dizzying and lush, speeding by in less than two minutes. The Nocturne is poignant, melancholy and tender, slowing down to reach its fragile high notes with charming delicacy. Tocatta returns to the dizzying pace, with hands flying up and down the scales to keep up with the ongoing progression. All that has gone before is echoed, seconded, in a final, spry summation.
It's just a gorgeous, solid bit of composition. Perhaps a bit old-fashioned in its romanticism, even traditional in its melody, but oh so welcome because of it.