Jan van Gilse was a Dutch composer and conductor born in Rotterdam in 1881 who began his career in the early 20th century composing orchestral, choral and operatic music broadly situated within late-Romantic and early modern traditions. His oeuvre moved between late-Romantic idioms and early modernist experimentation—integrating chromatic harmony, folkloric motifs and complex choral writing—and he also played a role in Dutch musical life through conducting and teaching during a period of national cultural development.