Wilhelm Peterson-Berger (1867–1942) was a prominent Swedish composer and music critic, known for his contributions to the late Romantic and early 20th-century classical music landscape. He was particularly influential in the development of Swedish nationalistic music, drawing inspiration from Swedish folk melodies and the natural landscapes of his homeland. Peterson-Berger's notable works include his symphonic poem *"Frösöblomster"* (Frösö Flowers), a suite for orchestra that reflects the beauty of the Swedish countryside, and his *Piano Concerto in E minor*, which showcases his lyrical style and intricate textures. He also composed operas, choral works, and chamber music, with pieces such as *"Kärleken och tiden"* (Love and Time) earning acclaim. Beyond his compositions, Peterson-Berger was an important music educator and critic, advocating for Swedish music and composers. His efforts helped to establish a national identity within the classical tradition and inspired future generations of Swedish musicians. His work is characterized by rich harmonies and a deep connection to the Swedish landscape, solidifying his legacy as a key figure in the evolution of Swedish classical music.