I think the problem is we have accepted a formal style to what we expect of Church music. We have a style of singing that is so tied to the space it is sung in that anything outside the revernt nature of the song and the place is looked oddly at.

I think you have put your finger on some of the problem, Don. My wife has a set of expectations as to what constitutes a "proper" style of singing for churches and if they stray outside of that she is not comfortable about it. I quite often jokingly ask her "Are they singing 'proper' hymns tonight?" Interestingly she accepts black gospel choirs quite happily and enjoys their music. I think that maybe because she accepts that that is their style of worship. I don't know, but there are some interesting questions about what we accept as music in this.