Ambient

Genre: New Age. 
Ambient music evolved from the experimental electronic music of '70s synth-based artists like Brian Eno and Kraftwerk, and the trance-like techno dance music of the '80s. Ambient is a spacious, electronic music that is concerned with sonic texture, not songwriting or composing. It's frequently repetitive and it all sounds the same to the casual listener, even though there are quite significant differences between the artists. Ambient became a popular cult music in the early '90s, thanks to ambient-techno artists like the Orb and Aphex Twin.