Emotions in Music

"Walk the Line" is on tonight.  Very moving dialog in the scene when Johnny Cash is trying to get a recording contract.  His band plays a gospel song and the producer isn't crazy about it and wants to dump Johnny.  Johnny wants a chance to "bring it home."  Producer says:

"Bri'...bring it home?  Alright, let's bring it home.  If you was hit by a truck and you were lying in the gutter - dying - and you had to sing one song.  Huh?  One song people would remember before you're dirt.  One song that would let...God know what you felt about your time here on Earth.  One song that would...sum...you...up.  You telling me that's the song you'd sing?  That same Jimmy Davis tune that we hear on the radio all day?  About your 'peace within you' and how its 'real' and how you'd 'shout it?'  Or - would you sing something different.  Something real.  Something you felt.  Cuz, I'm telling you right now - that's the song that people wanna hear.  That's the kind of song that truly saves people.  It ain't got nuthin' to do with believing in God, Mr. Cash.  It has to do with believing in yourself."

Pretty powerful stuff.