That whole house argument has been used way too many times, and has been invalidated every time. When you enter your house, sure the door is the front. However all houses are predetermined with faces and to have the front face pointed towards the road, the houses front is in relativity to the street, not you. In a concert hall or place with a main focus the back is the part furthest away from the main attraction, the main attraction in this case is Oryx. If you want to go sit at your "front" of a concert hall be my guest, I will be in the real front and actually get to see what is happening.