Here's the idea, Hector said. He had the Disco Inferno CD in his hand, the one we had all danced to at New Year's Eve, reliving the 70's. ''With percussion, oud and bouzouki we'll play disco as if it were world music''. So we went down to the studio and arranged I Feel Love by Donna Summer, just like that, as if we had never listened to anything else. This was Hector's genius, his method, his study of sound, which began with some small detail, from the rustle of a leaf, from a drum tapped on its edge instead of the skin. Then he left us alone to finish the project. And dance to disco.