I might disagree with that notion without fully thinking it through yet. my initial thought was that of The Grateful Dead and their version of live improvisational jams that have captured the hearts of their fans. I see little difference in that free form expression of worship you were talking about. We will turn it off because we have been conditioned to turn it off. Our lack of commitment towards individual expression has hurt us in communication. Communication in all directions, lateral as well as heaven bound. Having that historical insight into what movement produce what artists and songs is a great place to start. Music fans of all ages can get behind learning history, and learning modern recent church exposures. Music becomes the secondary voice behind doctrines and styles of worship. I am not from the modern approaches of this at all. Give me a good rendition of How Great Thou Art, and I'm happy. But I can also see the usefulness of the more stylized, modern, marketing tactic. It's still all about numbers.