Ok - but you must be sure not to hear the music after the drum intro on the same day that you do the test. It has to be next day so that you wake up with no memory of the actual pitch still in your mind.
I mean, play the whole song as often as you like today but tomorrow, isolate the drums and listen to only them - then try to guess the correct pitch of the music that follows. You've still got a 1 in 12 chance, of getting it right by guessing alone so you'll need at least 2 or 3 more songs to impress the wife.
