Peter Erasmus Lange-Müller (1850–1926) was a prominent Danish composer and conductor, known primarily for his contributions to the romantic classical music genre. He was born in the town of Vejle and studied at the Royal Danish Academy of Music in Copenhagen. Lange-Müller is best recognized for his orchestral works, choral compositions, and songs, particularly his art songs (Lieder). Notable works include his operas "Gøsta Berlings Saga" and "Fruen fra Havet," as well as his orchestral suites and a variety of chamber music pieces. His compositions often reflect the influence of Danish folk music, which he integrated into a classical framework, thus enriching the Scandinavian musical landscape. In addition to his compositions, Lange-Müller served as a conductor and educator, significantly impacting the development of music in Denmark. His ability to blend nationalistic themes with classical forms helped pave the way for future generations of Danish composers. Lange-Müller's music is characterized by lyrical melodies and rich harmonies, earning him a revered place in the early 20th-century classical music tradition in Denmark. His legacy remains influential in the study and performance of Danish classical music.