Thanks for uploading Stoll's rendition, he's a conductor that I admire a lot. And It's nice to see some Skalkottas on your channel, Score video community should highlight his music more!
Hadjinikos discovered the score of this Concerto in Berlin in a second-hand bookshop (early 1950s), alongside Skalkottas's Octet and first two string quartets. He gave the premiere of the Concerto in 1978, in Athens Greece. He had already given the premiere of his 2nd Concerto as a soloist (and performed it many times throughout his life) and the premiere of his 3rd Concerto as a conductor.
great piece! it seems he fuses some tendencies of schoenberg and webern, but most remarkable to me is his use of repetition both of single notes, groups & chords - a very effective way to establish different degrees of coherence.