If you don't know it, Delius' Piano Concerto is well worth a listen:
https://www.youtube.com/watch?v=MyVbpMjT6ko
It has some absolutely stunningly beautiful passages, particularly the intensely memorable lyrical second subject of the first movement. The recording on Chandos with Howard Shelley is of the earlier version, I believe.
Hyperion made a very compelling argument for the Delius PC in the early version in Vol. 39 of the RPC. I have always had a soft spot for this concerto.