Jim O'Rourke is an American musician, instrumentalist, composer, singer-songwriter and record producer. He is best known for his numerous solo and collaborative music projects, many of which are instrumental, and has been acclaimed for his music that spans varied genres, including avant-garde styles such as ambient, noise and minimalism, and styles of rock like indie rock and post-rock. He has been associated with the Chicago experimental and improv scene, as well as with New York City when he relocated to it in 2000 for his tenure as a member of American indie rock band Sonic Youth. He subsequently moved to Japan and has since been a Japanese resident.

Post-rock is a form of experimental rock characterized by a focus on exploring textures and timbres, as well as non-rock styles, with less emphasis on conventional song structures or riffs. Post-rock artists typically combine rock instrumentation with electronics. The genre emerged within the indie and underground music scene of the 1980s and early 1990s. However, due to its abandonment of rock conventions, it began to increasingly show little resemblance musically to conventional indie rock at the time, borrowing instead from diverse sources including ambient, electronica, jazz, krautrock, dub, and minimalist classical, with these influences also being pivotal for the style of ambient pop.