I've been playing a Yanagisawa 901 soprano for about ten years now, and a 901 tenor, as well.
I noticed that, every six months to one year, I had to adjust one little screw on each, and then each was back to playing well for another six months or more.
On the tenor, it was...
wanted to check everyones thoughts on these horns, they're claiming this one is a beginner/intermediate, it doesn't look too much like the modern models and I was wondering if anyone recognized the model. apparently it has metal resonators...