John, do you know what atmospheric inversion is and how that might affect sound wave propagation? In particular, in this experiment, you're performing this from an island in the Atlantic, surrounded by water. That water will have a cooling effect on the air, especially the air close to it. As you gain altitude, that temperature gradient will go from cooler air, to warmer air, and then likely back to cool again. Those layers of air with differing temperatures will change how sound moves through them.
This is in the same bucket as the string experiment. I'm curious if you've actually tried this, if you have any data to show for it, or if you have the process in steps for us to try and recreate it. No, your poetic narrative, while very nice, does not suffice.