Happy Birthday to my brother-in-law.

I mentioned a few weeks back that I have intermittent perfect pitch - the ability to hear a note in your head and get it right. As I've tried to learn more and more about why I don't have it all the time, I've delved into the entire space of intonation which I described yesterday. Turns out that although I can't always tune a guitar, I can almost always tune a violin. Puzzling that both have 'E' as the high note.

Nope - it's more basic than that. Just like the clarinets yesterday, a guitar can be off by little amounts. In better guitars it's adjustable. Started noticing there are guitars I like to play and those I don't. I adjusted a few of them. Darn. All of a sudden it's hard to put them down. They sound good. I've always known how to tweak them, but generally just left the factory setting as 'good enough'. It generally isn't. It also has to be changed every time you use a different kind of guitar string.

Violin is different. Four notes, and they're perfect fifths. You get the four notes and the violin is in tune. Intonation isn't relevant since there aren't any note boundaries. Hmmm...