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