Colin Edwin is a member of the British progressive rock band Porcupine Tree, where he plays fretted and fretless bass guitar as well as Double Bass.

He has a long running collaboration with multi-instrumentalist Geoff Leigh (Henry Cow/Hatfield and the North), under the name Ex-Wise Heads , releasing 6 albums so far.

He is also a member of the band Metallic Taste of Blood who released their eponymous debut album in 2012 on Rarenoise Records.

In 2009 Colin released his first solo album third vessel

Another solo album followed in 2012, entitled "PVZ" which was released as a Limited Edition USB key.

Colin has also made two albums with US guitarist Jon Durant appearing on the 2011 album Dance of The Shadow Planets and collaborating on 2012's "Burnt Belief".