Bobby McFerrin demonstrira moć pentatonske ljestvice u sklopu World Science Festivala 2009 ne temu "Note i neuroni - u potrazi za zajedničkim suzvučjem"
World Science Festival 2009: Bobby McFerrin Improvises A Cappella, Song One of Two from World Science Festival on Vimeo.
World Science Festival 2009: Bobby McFerrin Improvises A Cappella, Song Two of Two from World Science Festival on Vimeo.