If newcomers walk into a Protestant church on Sunday and hear an organ playing, and see hymnals, the odds are good that between 50 and 250 people will be in the pews.
If a church's attendance is larger than 250 – especially if it's 1,000-plus – visitors will usually see pop-rock "praise musicians" on stage, including a drummer. The hall will feature concert-level lighting and video screens displayi…