I happened upon a neat video at World Science Festival 2009: Bobby McFerrin Demonstrates the Power of the Pentatonic Scale
http://www.youtube.com/watch?v=ne6tB2KiZuk&feature=player_embedded
I am interested and paticipate in choral music and this is really a neat demonstration that scale is something that comes natural to us all. I think it is a most curious thing about music.
