  
Hymns and singing
There's always really good singing in the black churches I've been to. I used to be in the choir here when I was younger but I don't come to the practices any more. The really good singers are just like you hear in gospel choirs.
That's it really, as you can see, there's nothing special about the building, it's what goes on inside that's different, and you can't see that unless you come one Sunday morning. | 
