Hans Sommer, a versatile German artist, left an indelible mark on the music world as a composer and mathematician. Born Hans Friedrich August Zincke in Braunschweig in 1837, Sommer's songs captivated concert halls for three decades, particularly in the 1880s. His work spans a range of genres, showcasing his eclectic talents. Beyond music, Sommer was a respected figure in the field of dioptrics and even served as the director of the renowned Technical University in his hometown. With a legacy that includes compositions and contributions to science, Hans Sommer remains a fascinating figure in the arts and academia.