Outsider music

/aʊtsˈaɪdə mjˈuːzɪk/

/aʊtsˈaɪdɚ mjˈuːzɪk/

Outsider music

unconventional, experimental, and non-mainstream music created by individuals who do not conform to established musical conventions or industry expectations

Examples

1. While the bulk of outsider music never ventures beyond open mics and the record collections of a few dedicated fans, Legendary Stardust Cowboy's music has actually been played in space, aboard Skylab the American space station launched in 1973.