The Unfortunate Violinist Is Smitten at First Sight Sight by His Highness.

Letitia, who lost her parents when she was a child, was picked up by a traveling troupe that toured around the country performing music, and was forced to work like a slave. One day, the troupe is invited to perform in a kingdom renowned as the Land of Music, where they receive rave reviews from a music-loving prince. The prince, among others, seems to have developed special feelings for Letitia...

(Source: MangaPlaza)