Tuning and temperaments

I'm currently snowed out of my workshop amidst unseasonably weird UK weather, so it's a great opportunity for me to put fingers to keyboard and share my thoughts on guitar tuning. I think this is a really fascinating topic because it is the bridge between the world of music (essentially a human invention) and laws of physics as found in nature. I'm going to use the guitar as my instrument of choice to explain these concepts. I hope you find it interesting.

Music today