Post Gazette:

Music gives biologists fits. Its ubiquity in human cultures, and strong evidence that the brain comes preloaded with musical circuits, suggest that music is as much a product of human evolution as, say, thumbs. But that raises the question of what music is for. Back in 1871, Darwin speculated that human music, like bird songs, attracts mates. Or, as he put it, prelinguistic human ancestors tried “to charm each other with musical notes and rhythm.”

Full Story: Post Gazette: Caveman crooners may have aided early human life

(via Vortex Egg)