Artists like Robert Fripp

Henry Cow were an English experimental rock group, founded at the University of Cambridge in 1968 by multi-instrumentalists Fred Frith and Tim Hodgkinson. Henry Cow's personnel fluctuated over their decade together; alongside Frith and Hodgkinson, however, drummer Chris Cutler, bassist John Greaves, and bassoonist/oboist Lindsay Cooper were important long-term members.

Anderson Bruford Wakeman Howe (ABWH) were an English progressive rock band active from 1988 to 1990 that comprised four past members of the English progressive rock band Yes. Singer Jon Anderson left Yes as he felt increasingly constrained by their commercial and pop-oriented direction in the 1980s. He began an album with other members from the band's 1970s era: guitarist Steve Howe, keyboardist Rick Wakeman, and drummer Bill Bruford, plus bassist Tony Levin.

Phish is an American rock band formed in Burlington, Vermont, in 1983. The band consists of guitarist Trey Anastasio, bassist Mike Gordon, drummer Jon Fishman, and keyboardist Page McConnell. All four members perform vocals, with Anastasio being the primary lead vocalist. The band is known for their musical improvisation and jams during their concert performances and for their devoted fan following.

Lunatic Soul is a progressive rock side-project founded by Riverside vocalist and bass guitarist Mariusz Duda in 2008. Originally conceived to allow him to explore genres outside of rock, the project was described by Duda in 2014 as progressive, ambient, oriental, and electronic. Lunatic Soul has released eight albums to date. The most recent, The World Under Unsun, came out in October 2025.