Well, duh. [X-TREEM comic geekery]

Once upon a time, there was a random "Tales of the Green Lantern Corps" issue lying around Gaming Central. I had no interest in GL, but being bored, I picked it up, and lo, I did learn about the F-Sharp Bell (because how do you explain the concept of a green lantern to a race that has no eyes?). I lurved it in ALL CAPS, to the extent of storing away the Bell's modified version of the GL oath in my backbrain.

Painfully obvious reason for this, in retrospect: today, I randomly learn that the story was written by Alan Moore. Because, after all, he is God.