It seems there are a lot of cool things we miss out on not being in the US. One of which is the World Science Festival that takes place each year.
This year Bobby McFerrin demonstrated the power of the pentatonic scale, using audience participation, at the “Notes & Neurons: In Search of the Common Chorus” event, on June 12, 2009. Just take a look at the video clip below to see how he uses the audience and how quickly they learn to acompany him. [via BoingBoing]