When musicians jam together -- a new study has revealed -- its not just their music that harmonizes, it's their brain waves, too. The Max Plank Institute in Berlin analyzed guitarists playing in pairs and found that their brains were in sync. What would that actually look like? Pascale Harter from the BBC's World Today program invited Dr Mick Grierson from London's Goldsmiths University to come in and listen to some music...
