I have been listening for some time "classical"(not the proper meaning of the word) music. Many works, such as Schubert's, capture incredibly well the feeling of sadness. Other works seem to create joy(Vivaldi's Spring from Four Seasons) and other such as Mozart's 25th symphony seem to induce a state of mind that is neither joyful or sad. On a neurological level, what is happening when one listens to depressive music? Are there any studies conducted?
The reason for asking this question is that I feel, as the ancient greeks did, that music enchants humans, and thus having a very powerful effect on the brain, say, capable of transforming a multi-millionaire into a hobo.