You know, occasionally you hear stuff like that that you know for sure is in your head, because it isn't like normal sound. I suddenly heard someone calling "Red robinnn" like in the commercials. After I heard it, I remembered it from a while ago. So anyway, I was playing Terraria and thinking about this, when I heard it again. Then I remembered: I was hearing it all the time last time I played Terraria. It's not part of the music or anything, trust me, I know I'm imagining it. It happens it different areas of the game with completely different music and sounds. I even heard it when I muted it after a while. And when I hear it, it sounds like somebody's calling it from outside my house and far away. There is something going on here, but what?
It sounds like this, but without the "yumm"