A wise friend once described 1970s AM radio as a medium in which singer-songwriters flirted with each other, had love affairs, broke up and then (usually resulting in the best songs) told tales. The remixes of raw sound at the Freesound website (freesound.iua.upf.edu) are rarely autobiographical in any immediately discernible sense, but dialogues do occur there. Take, for example, a sample of a flying grey heron caught on tape (link) in Cologne, Germany, by a Freesound participant (and biology teacher, according to his personal page) who goes by the tag reinsamba. This reinsamba suggested from the start that his file might make a good remix subject, since he notes in the upload’s description: “Play it with 25% of the original speed and You will hear the cry of a dinosaur” (sic). Subsequently, one acclivity dropped the file two octaves (link) and someone named pixt sped the thing up (link), resulting in what’s described as resembling “a machine to mix cement, water and sand.” The remix section of Freesound is getting bigger every month. And though the majority of entries feature remixes by individuals of their own items, there’s a growing number of situations, such as this, when various sound-minded individuals play a cool game of telephone.