Chords

I was listening to my music on shuffle, when one of my favorite songs came on. It was "Hallelujah" by Jeff Buckley.
 The first line of the song is "I heard there was a secret chord, that David played and it pleased the Lord."
I began to think that if there were a special note, a special key, that would be considered the perfect sound, what  it might be. Immediately, several things came to mind.

1. My first thought was the major to minor chord change at :48 seconds into "Lover, You Should Have Come Over", also by Jeff Buckley. The chord change is so pristine, so harmonious, that I believe I actually stopped breathing once while listening to it.

2. My second thought was at 1:05 in "Exogenesis Symphony Part 1: Overture" by Muse, which can literally lift me out of my chair.

3. My third, and final thought was all of "Claire De Lune" by Claude Debussy, more specifically, the theme which begins at 1:45. (although the complete song can bring tears to my eyes at any time.)

AH. But was I completely wrong? Maybe this chord is not music; maybe it is more natural...

Here's what I came up with....

If there were a chord, that when played, would guarantee entry to heaven,
I bet it would be that noise you make when I kiss your neck.