The Buchla synthesizer is a type of electronic musical instrument developed by Don Buchla in the early 1960s. It is known for its unique modular design, allowing musicians to create and manipulate sounds using various modules that can be connected in different ways. This flexibility makes it popular among experimental and electronic music composers. Unlike traditional synthesizers, the Buchla synthesizer often emphasizes control voltage and patching techniques rather than a keyboard interface. Its innovative approach has influenced many modern synthesizers and continues to be used by artists seeking to explore new sonic possibilities in their music.