Hannah–look into the Duo as well as the Larghetto for vln/harp by 19th c. Latvian composer Nicolai von Wilm. Both pieces are extremely well written for both instruments and have a bold, Slavic character. There are several YouTube videos of these works by European harpists. I play the Duo with a cellist and it never fails to bring the house down! Sheet music is available on the BYU Harp Archive.