Bobby McFerrin has an act where he starts the audience off with a few pitches based on his body position on a stage, and have them complete the rest of the notes as he moves farther and farther away from the center at which he started. And the audience uses the pentatonic scale, unfailingly. Ditch those 3NPS scales, we've been doing this wrong, guys!
Watch the video.
I give it a day before someone claims that classical music is better because it is beyond the scope of the commoner :P
