Well I had a strange and intriguing experience a few weeks ago while driving. On the radio was Just a Closer Walk, and I'm sick of it. Out of my mouth comes a whole new melody using the radio material as a backgound chorus. It wasn't a harmony I was singing, it was a whole valid melody with which the radio harmonized perfectly, like a gospel chorus behind me. Frankly it was an improvment. It made me wonder if we can do this more often. Maybe everyone else already knew about this and I am just late to the party.