Foreboding phantom or nonchalant spectre?

The conductor of an orchestra in which my brother played violin came up with an unusual way to shoehorn part of an overture into a concert.  He wanted it to be part of the program, even though the orchestra never rehearsed it in its entirety.  His solution: Perform the overture from "Phantom Of The Opera" in concert up to the point that the ensemble had rehearsed it and change the last note so that it suddenly switches from a minor to a major key.  As my brother pointed out, this surprise ending couldn't help but make you think the phantom would stroll out and say, "Hi, I'm the phantom of the opera.  What's up?"