He made it on a piano and presented to the band's guitarist, Jonny Buckland, who added guitar chords to the basic track. Martin elaborated upon, "He picked up his guitar [a sure sign that he likes a song] and played these brilliant chords ... It was like a chemical reaction process...
One of the most memorable piano riffs of recent times, Coldplay's 'Clocks' looks to Minimalist composers like Michael Nyman, with its use of chords filled with additive rhythm patterns. Try starting off with a 3+3+2 pattern of semiquavers: ...
吉他谱和弦谱扫弦节奏coldplay_clocks