Roland Kayn (1933–2015) was a pioneering German composer and sound artist, renowned for his contributions to electronic and computer music. His work spans various genres, including avant-garde, experimental, and minimalism, often exploring the boundaries of sound and technology. Kayn is best known for his innovative compositions such as "A Little Electronic Music" (1968) and the ambitious "Simultan" series (1970s), which showcase his use of early electronic instruments and computer-generated sounds. His piece "Nachtmusik" (1980) is particularly notable for its complex structures and textures. Kayn's impact on music is significant, as he was one of the first composers to fully embrace the capabilities of technology in music creation. His integration of electronic sounds with traditional compositional techniques has influenced a generation of musicians and composers in both the experimental and contemporary classical scenes. His work is often associated with the development of algorithmic composition, and he has been recognized for expanding the possibilities of sonic expression. Kayn's legacy continues to inspire artists exploring the intersections of music, technology, and perception.