Maryanne Amacher (1938–2009) was an influential American composer and sound artist known for her pioneering work in experimental music and sound installations. She is often associated with the avant-garde and electronic music genres, utilizing innovative techniques to explore the relationship between sound and perception. One of her notable works includes "City Links," a series of compositions that manipulate urban soundscapes, and "Sound Characters," which featured her unique approach to spatial sound. Amacher was also recognized for her installations that incorporated architectural acoustics and the human body's sensory responses to sound. Her work often highlighted the perceptual phenomena of sound, such as auditory illusions and the ways in which sound can interact with physical space. Amacher was a key figure in the New York City avant-garde scene and collaborated with other prominent artists, including John Cage and Steve Reich. Her contributions to music and sound art have had a lasting impact, influencing generations of sound artists and composers. Amacher's exploration of the psychological effects of sound and her commitment to engaging audiences in immersive experiences continue to resonate within contemporary music and sound studies.