Bobby McFerrin builds a pentatonic scale! Neuroscientists! Creating expectation in the human brain! Music Theory! Dancing! You can't go wrong with this one.
This site is about how a musical education affects and benefits your success in life, society and school. It also show how music affects the develpment of intelligence. Thank you, Sam, for finding this one for us!
This is the most useful link I know for learning how music works. Use the lessons and trainers to help you improve. Check out the guitar fingering and sheet music pages. It will use all clefs.