Seriously, this happened: a couple of nights ago I had a dream consisting of harmonies based on the 13th partial of the harmonic series. What I've written down isn't that - that's hard to describe. In a way it was really just the single 13/8 pitch at the start of this page, but somehow there was a multitude of other sounds shimmering round it. It wasn't a visual dream, but it had a huge sense of space. What can it all mean?
I could just sit and play that first interval for ages. It's a strange one, it takes some listening because it lies even further outside the harmony I was brought up with than the 11th partial (which does bear a passing resemblance to "quarter tones" in equal temperament).