Peter Arnold Heise (1830-1879) was a significant Danish composer and conductor, primarily known for his contributions to the Romantic genre. Heise was born in Copenhagen and displayed musical talent from an early age, studying at the Royal Danish Academy of Music. His notable works include the opera "Drot og Marsk" (King and Marshal), which premiered in 1880, posthumously highlighting his capability in operatic composition. He also created a number of songs and choral works, often drawing inspiration from Danish folklore and literature, which helped to foster a nationalistic sentiment in Danish music. Heise's impact on music is particularly evident in his role in shaping Danish opera and song composition during the 19th century. He was influential in encouraging a Danish musical identity, moving away from Germanic influences prevalent at the time. His emphasis on lyrical melodies and emotional depth has left a lasting legacy, influencing later Danish composers. Today, Heise is recognized as a key figure in Denmark's musical history, celebrated for his contributions to both the national repertoire and the broader Romantic movement in music.