WIKIPEDIA:

“ Colin Charles Greenwood (born 26 June 1969), is an English musician and composer best known as the bassist of the rock band Radiohead. Apart from bass, Colin plays keyboards and synthesizers and works on sampling on the electronic side of Radiohead. He is the older brother of fellow band member, Jonny Greenwood.

Early years
Greenwood, whose father served in the Army, lived in Germany as a child for enough time to become fluent in the language. The family historically had ties to both the British Communist Party and the Fabian Society. He has credited his older sister, Susan, with greatly influencing his taste in music as an adolescent. Said Greenwood, "She’s responsible for our precocious love of miserable music. The Fall, Magazine, Joy Division. We were ostracized at school because everyone else was into Iron Maiden.”
When Greenwood was 12 years old, he met future band mate Thom Yorke at Abingdon School, an independent school for boys. Future band mates Ed O'Brien, who Greenwood met during a production of Gilbert and Sullivan's "Trial by Jury", and Phil Selway also attended the school. When Greenwood was 15 years old he bought his first guitar, studying classical guitar [......] ”

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