Gustav Lange (August 13, 1830-July 20, 1889) was a German composer. He was born in Schwerstedt, near Erfurt, Prussian Saxony, in 1830. He produced a phenomenal number of works, most of which were light and popular. The piano solos, Edelweiss (Op. 31), and Blumenlied (Op. 39), alternatively known as Flower Song in English, are perhaps two of his best known works today, and are cherished by music lovers. He died in Wernigerode in 1889.