he saw the guitar leaning in the corner , 15w amp , waste bin with scrap-paper sticking out , sturdy desk with scratch marks all over it , blank cream walls with posters stuck , clothes draped over the wrought-iron radiator , bedside table with books lying on , glass of water , paper and pen , cds lying in boxes on the floor , stereo system on desk , clunky grey macintosh computer with monitor occupying half the desktop surface .