Singing, music, and evolution

Everybody's favorite commie is going to love this piece by old pal and fun neighbor Scott on the role of music and harmony in human evolution. He ends it with some questions which Robbo could answer for me, as I'm more on the cave man side of the scale vis a vis the difference between minor thirds, major fourths, pick and roll, and the hit and run.

Yips! from Robbo:

Particular notes elicit the same emotions from most people, regardless of culture, studies suggest. A major third (prominent in Beethoven's "Ode to Joy") sounds happy; a minor third (as in the gloomy first movements of Mahler's Fifth) provokes feelings of sadness and even doom. A major seventh expresses aspiration. The absence of a third seems unresolved, loose, as if hanging, adds jazz guitarist Michael Rood, 17 years old.

The Music of the Spheres! It's all there in Plato! What do they teach them in the schools these days?