Electroacoustic improvisation (EAI) is a style of music that incorporates aspects of both electroacoustic music and free improvisation .
EAI is rather loosely defined, but is sometimes characterized by quiet, slow moving, minimalistic textures, often based on extended droning sounds. EAI drew influence, in part, from the tradition of free improvisation but should not be considered a branch of avant-garde or free jazz. Combined with this was the influence of electronic and electroacoustic music, the music of American experimental composers such as John Cage, Morton Feldman and David Tudor, Pierre Schaeffer’s musique concrète, and the so-called instrumental musique concrète of Helmut Lachenmann. British free improvisation group AMM, particularly their guitarist Keith Rowe, contributed to the development of contemporary EAI. .
