We say this is art

If you're not laughing your head off by 4'30", it'd be a shame.

“Strive not to be a success, but rather to be of value.” Albert Einstein

Vamos a TEDx Buenos Aires!!!

Increíble que tenemos el honor de participar! Espero verlos allá!!!

Bobby McFerrin

What he's doing here is tell the audience the 4 notes that constitue the basis for the pentatonic scale (if you have a piano around, play CDE GA).

What the audience does, assuming that very few has had any relevant music experience, is predict the rest of the scale, extending the range upwards and downwards.

It really is worthwile cheking out (3 mins)