It started as a song to sing to people on Sunday the 28th of March (which didn't happen, but no matter), and as an experiment in using a "neutral third" scale degree (halfway between minor and major).
Turns out, I didn't feel like I'd gotten the Neutral Third to work. It just sounded disturbing.
I made some adjustments, and the part in question is a little more conventionally bluesy now, using the minor AND the major and sliding between them. But some relics of the experiment remain in this sound, and I hope they lend it a bit of grime, a bit of organic dirt in its bones.