Ambient music emphasizes on tone and atmosphere over traditional musical structure or rhythm. Part of the reason it's so compelling is the fact that it can sound exceptionally complex by virtue of the free form progression, yet simultaneously rudimentary thanks to its minimalist stature.
Ambient music can be traced back to early 20th century although it was the advent of synthesizers which breathed new life into the genre. Some iconic artists in the Ambient genre include Brian Eno, William Bansinski, Tim Hecker and Kaitlyn Auriela Smith.