He's got some great piano pieces and is great to hear live if you get the chance. A lot of the newer stuff is updated older synth-y music and/or with vocals. I'll try to include links to both versions but IMO the more recent ones are better.
Nostalgia
best version - https://www.youtube.com/watch?v=B5IsI6zzfc4
Almost a Whisper
original - https://www.youtube.com/watch?v=a3AP9RYSiis
newer - https://www.youtube.com/watch?v=b6tFyKF0b9o
One Man's Dream
https://www.youtube.com/watch?v=Ma3GVCK0w3A
Nightingale
https://www.youtube.com/watch?v=IMdbNMq2ifA
O Luce Che Brilla Nell'Oscurita
https://www.youtube.com/watch?v=NYbFaf1npTg
Moments Without Time
https://www.youtube.com/watch?v=MzYNPwiB7Pk
In the Morning Light
original - https://www.youtube.com/watch?v=-tw0qL8D5O4
newer - https://www.youtube.com/watch?v=9UvrvGRz2dk