Was in a cab tonight with a Russian driver who was very familiar with Roslavets, Obouhov, Alexandrov and Feinberg. I'm working on an arrangement of a Roslavets prelude, Largo from 1915, for my quintet. Maybe we'll play it at the Vanguard in March. The three "Compositions" from 1914 are really nice. I have the music to the second sonata, but it's a bitch to play and not all that satisfying for me. I love music that stretches tonality like a rubber band, but strictly serial pieces like that are a little tough for me to appreciate. I have Hamelin's recording of Roslavets.
I like Schoenberg's Op. 11 but the later piano music is not for me - at least now. Never say never. Have to admit I'm unfamiliar with the Busoni sonatinas.