They had a recording of one of his compositions for piano for 4 hands -- and the recording was of him and pianist Edward Kilenyi, who was professor at FSU. I found the selection of them playing Dohnanyi's composition Valse Boiteuse from his Suite en Valse for Two Pianos. The ONLY connection I have with Kilenyi was he sat in on one of my juries for end of the year assessment. When I was there, he only taught piano majors, and I was a music therapy student.
Anyway, I thought it was pretty cool when I found the recording on Youtube, so I share it with you.