Advocatus Diaboli

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About Advocatus Diaboli

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  1. Checking my copy of the Strad varnish book, it also looks like Greiner was cold mixing the test varnishes instead of cooking them, which will also give very, very different results. #19 in the notes section.
  2. My understanding about the B&G 4:1 is that it was arrived at as a result of experiments Greiner did with various batches of varnish he made. It's also worth keeping in mind the resin being used will give different results, Greiner was using rosin oil and resin, not pure spruce resin as Brandmair suggested was most plausible. Taking Greiner out of the equation because of the possibility of preformed maker's bias, Brandmair and Echard agree a lot more closely than it might seem on first glance. Especially taking into account other analysis by Brandmair, I don't think she ever rules out the possibility of an oil ground. My two cents.
  3. I haven't had the same problems with cochineal fading that a lot of people have mentioned. I even kept a test strips with samples of different lakes mulled into varnish at the bottom of my light box for about a year, and the cochineal was one of the most stable.
  4. Knowing me I could still be wrong. It's what I'm best at! The only thing I know for certain is it isn't a Strad. I don't have any Strad files on that computer, their all on my laptop which won't work right now.
  5. Right. I've lost myself now. I think I uploaded the wrong image. The red line is the same as the previous red line. The blue line was also modern, but about four years old. Apparently I'm still as bad at organizing as ever.
  6. Here are two of those comparisons. The red line is the same instrument as the above blue line violin. The blue and purple lines are the same materials, blue is the same model and purple is a different model, although the intention was completely different for all three.
  7. Hah, for sure. It's a bit different at acoustics, so much harder to pull the wool over peoples' eyes..
  8. That's one of my violins. It lives in the New World Symphony. The difference with that one was it was for a player who was used to high end old instruments, so I made him a violin that he would feel at home on. Most musicians aren't quite happy with a violin like that, even if they think they like the idea of playing old instruments. Let me see if I can find the spectra from a similar instrument that I made with maple and spruce from the same logs, and same model, just with a different end goal.
  9. Hah. I threw it in a slideshow with a bunch of old instruments and no one at Oberlin noticed... I'll have to dig through a bunch of old instrument spectra and see what else I can share that's interesting.
  10. Oops, I got that backwards. Blue was new and red was old.
  11. The middle one was one new, one old, again. So was the last set, although you were backwards on that one. The blue line is old. By far the nicest (most expensive) of the three old ones.
  12. Good call again! Not too surprised you got them, but I think I learned something watching your thought process! Ok, last one, just for fun...
  13. Fossil, glad you enjoyed it! Here you go..