Mono is a Japanese post-rock ensemble formed in 1999. The group specializes in instrumental compositions that blend post-rock sensibilities with experimental and indie rock approaches. Operating primarily within the instrumental rock sphere, Mono has established itself as a notable act within the broader landscape of experimental music. The band's work is characterized by layered arrangements and dynamic soundscapes that emphasize atmosphere and compositional depth over vocal elements. Since their inception, they have remained active contributors to the post-rock and experimental rock genres.