The shadow knows

[annie at allthingspiano.com]

Well, I think the shadows are waaaaay cool (and much more unusual than
pianos in sunlight going out of tune faster).  Actually, your observations
suggest a bunch of other cool ideas about how to see/illustrate what goes
on with strings.  Thanks!

Annie

>
> Tuning a "new" university sale Yamaha GC1 Disklavier
> (naturally) this morning, sitting there in direct sunlight
> (naturally) in a new house (naturally), I (oddly) noticed
> something. Since I was stuck in the sun, I got to watching the
> string shadows as I pulled the unisons in. I could see the
> difference as they came in tune with one another. The first
> two strings were just generally fuzzy and dim, then darkened
> and sharpened as they phased together. Cool! The third string
> was dim and fuzzy, without bothering the other two, then
> sharpened and darkened as it came in tune. One string out of
> tune to the other two also pulsed visibly with the beat. Way
> cool! This worked best around octave four, but that may just
> be because that's where I could see it best.
>
> I know, I'm easy, but hey! I need *something* to entertain
> myself with when I'm tuning, and I don't often get shadows
> that intense. I ended the tuning in a much better mood than I
> started.
> Ron N
>