Ronald Frederick Geesin (born 17 December 1943) is a Scottish musician, composer and writer known for his unusual creations and novel applications of sound.

After leaving the Original Downtown Syncopators, Geesin’s "chance careering" took three main distinct but parallel routes: 1) live improvised performances in venues as diverse as folk clubs and the Royal Albert Hall; 2) music and effects for The Media, including all four domestic BBC Radio networks, and advertising, documentary and feature films; 3) stand-alone works for LPs and CDs.

After his first solo album in 1967, A Raise of Eyebrows,[3] Geesin launched a one-man record company with the self-released As He Stands, Patruns, and Right Through.

[4] During the 1990s, he collaborated with the artist Ian Breakwell on video projects such as the large-scale work Auditorium[5] and live art pieces such as Christmas Carol (1991) in which four synchronised figures dressed in Santa Claus costumes performed in Newcastle's Northumberland Street,[6] having been banned from the Gateshead MetroCentre.

In 1990, he designed and produced the 'Tune Tube', a giant interactive sound and light installation at the MacLellan Galleries, as part of ‘Glasgow 1990’.

In the 1990s, Headscope released two CDs, Funny Frown and Bluefuse, melding modern technology with appropriated and found sounds.

[citation needed] The couple collaborated in 1990 on an interactive installation of three panels called Tri-Aura at The Science Museum, London.