Timothy "Tim" George Hodgkinson is an English experimental music composer and performer, principally on reeds, lap steel guitar, and keyboards. He first became known as one of the core members of the British avant-rock group Henry Cow, which he formed with Fred Frith in 1968. After the demise of Henry Cow, he participated in numerous bands and projects, eventually concentrating on composing contemporary music and performing as an improviser.

Jeremy Webster "Fred" Frith is an English multi-instrumentalist, composer, and improviser. Probably best known for his guitar work, Frith first came to attention as one of the founding members of the English avant-rock group Henry Cow. He was also a member of the groups Art Bears, Massacre, and Skeleton Crew. He has collaborated with a number of prominent musicians, including Robert Wyatt, Derek Bailey, the Residents, Lol Coxhill, John Zorn, Brian Eno, Mike Patton, Lars Hollmer, Bill Laswell, Iva Bittová, Jad Fair, Kramer, the ARTE Quartett, and Bob Ostertag. He has also composed several long works, including Traffic Continues and Freedom in Fragments. Frith produces most of his own music, and has also produced many albums by other musicians, including Curlew, the Muffins, Etron Fou Leloublan, and Orthotonics.