MEMORIES OF A PROGRESSIVE ROCK YOUTH IN 1970s LOS ANGELES 
 
When Yes opened for Black Sabbath in 1972, Jeremy Gilien's life was forever changed. &nbsp; 
 
In fact, he didn't bother sticking around for the headliner. 
 
Robert Matsuda asks him about that night, opening up a discussion about progressive rock, one of the greatly misunderstood genres in popular music.

Why do certain popular songs or works of classical music have an effect on our emotions?

Can we use music theory to help us understand the relationship between composition and the human psyche?

Co-hosts Jeremy Gilien and Robert Matsuda want to ask each other how this happens.

We may not come up with definitive answers - but we promise to ask interesting questions.