Thomson Package Holidays have a blog in which they attempted to tell people about music. Despite having perpetuated the stuff myself, I find myself increasingly sceptical of anything that smacks of a narrative in describing the spread of music — musicians steal everything they possibly can from everywhere, and for every traceable influence there’s countless ambient factors that make the difference. And occasionally history actually acknowledges them. But the chart is a lovely piece of graphics with nice animation. The commenters get on their case, of course.