Honest to goodness this tea sang to me! I made a cup in my office this morning, and while it was quite, I heard something that sounded like an Indian sitar. I moved closer to the tea, and though still faint, I heard it more loudly! I moved the tea to another room, and still heard it there. I verified with a coworker, and still the sitar. After more experimentation, we verified that it was the mug, not the tea bag. After a few minutes, the song went away.
So, next up, another type of rooibos in the same mug, the same rooibos in another mug, and other combinations to see if I can replicate the music.
What a strange, but fun, start to the work week. Thanks to this Rooibos Vanilla tea!