Janacek has two works for piano and chamber orchestra.
Concertino (1925) for Piano, Two Violins, Viola, Clarinet, French Horn and Bassoon
and Capriccio for piano(left hand!), flute and brass ensemble.
Interesting! Does the Berg feature the piano, or is it just one of many soloing instruments?
The piano and violin are soloists, it's like a double concerto (at least as I remember it). There's even a movement in the middle for just the two of them.
Bennom