This year, my teacher introduced me to some lesser-known composers. I hadn't heard of Paul Juon, but his works are new favorites. Known as the "Russian Brahms," Juon wrote numerous orchestral and chamber pieces, including a Clarinet Sonata, Op. 82, and Divertimento for Clarinet and Two Violas, Op. 34.
His gorgeous "Trio Miniatures" starts this YouTube playlist.
Juon on iTunes, Arkivmusic, Wikipedia, IMSLP.