uguntde

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Everything posted by uguntde

  1. What do you use to colour your varnish? Will you apply a layer with more colour?
  2. What does this tell us about you Martin? This means you might be able to identify it as it is not, but as it is not you are also happy to say so. And it is easier to identify it as not being a Testore than otherwise?
  3. I am trying to understand some frequency analysis of instruments, and wonder whether some of the experts here could give me some hints. Number 1 is a spectrum generated using Audacity with strings muted, by knocking on the bridge. Major frequencies are: 231Hz – largest/ widest peak overall Shoulders at 203 and 259Hz 321 Hz 374/385Hz 453Hz – as large at 231Hz – about 2*231Hz 489Hz 534Hz (with shoulder to the left) 566Hz - 591Hz - 636Hz - 665Hz - 713Hz - 781Hz - 817Hz - 873Hz - 945Hz - 977Hz Could someone help me assign what is what? This is a 402 body length viola,
  4. I agree that this is not a JB Collin, the varnish is completly different, and the underground untreated (dirty borwn where the wood comes through). But the fingerboard of the Bridgewood and Neitzert violin is also untypical as Mirecourt makers always rounded the corners of the fingerboard.
  5. The 24 Caprices by Paganini are a good challenge for a grade 8
  6. There were just some makers over the years. I also think you can't call it Berliner School. But I know at least one luthier in that area who has an interest in Berliner Geigenbauer. It is a little like the Scottish makers ...
  7. Berlin school: Oswald/ Otto/ Max Möckel, Otto Seifert, Ludwig Glaesel, Dötsch, Ludwig Neuner. Seen as Berlin school by German makers. I know a luthier in Germany who specialises in this school.
  8. You were spot-on with "so I'd look for something vibrating that does not radiate sound". This viola has a very thin fingerboard, made in Degani's style, hollow underneath. If I stick a piece of lead underneath with double sided tape the wolf is completely gone. How did you come to this guess? Because B modes can'e be around E or F?
  9. uguntde

    Kloz ID

    Knitl should have a signature on the back. I will have another close look whether there is anything faded, but I think not, I would have seen this. The pins, in particular the 3 in the button, could be later - although, why would anyone add 3 pins there??? Reminds me of Monty Python's Michelangelo in which he paints the Last SUpper with 3 Christs.
  10. uguntde

    Kloz ID

    The square shaped blocks (not the half moon shape) is French, isn't it?
  11. I have a really good sounding viola with an annoying wolf on the E on the G-string. It doesn't rattle but the note sounds sick, much weaker. It is not there on the same note on the D-string, there the E is crystal clear. But I have to play many passages in 1st position that work better in 3rd. I know how to eliminate it. A little pair of magnets does the job - see the picture. I shifted it arond to find the optimal position. Further down it makes a worse wolf on F, but in this position all is gone. I do not like this magnet on the instrument and wonder what solution you would suggest
  12. uguntde

    Kloz ID

    Here the dimensions, hard to measure over the high arch: Length of back over arch: 358mm Width: upper bouts: 166mm lower bouts: 204mm mid C bouts: 114mm Rib heights: neck: 31-32mm, bottom 32-33mm, mid C bouts 31mm, corners (all 4) 32mm
  13. uguntde

    Kloz ID

    I will post dimensions when I have access to the instrument again later this week as I am currently travelling. I always wondered about the locating pins, the shape of the f holes, the one piece front and slab back. Also the square blocks, not the round half moon shape typical for Kloz instruments. More like what you see in later French violins.
  14. What I wonder about Michelman is how this varnish dries, as the rosinate and drying oil are not fused. If you cook them together you get an extremely well drying varnish, I get a drying time of 3h in UVA.
  15. As a Christmas present I would get a nice edition of the Mozart or Beethoven sonatas. This is something to enjoy for many years and it is unlikely that a young player already has this. The 2nd volume of Mozart sonatas is all playable for a grade 8 and some are very beautiful.
  16. If you asked me for today I would ask for the Shostakovich quartets, or at least his violin sonata. But you must be ready for those.
  17. I recently dissolved rosin in alkaline solution and precipitate with Fe SO4. Air oxidises the Fe2+ quickly to Fe3+ which so redbrown. I added a little rosin and cook this briefly together, then added an equal amount of linseed oil and heated this for one hour. I get a relatively hard sticky substance that dissolves in turpentine.
  18. uguntde

    Kloz ID

    Let me ask this way. If I took it to H Köstler and asked for an expertise he would probably come up with something. If he assiged a name to it, would you believe him? If not, I'll call it Kevin Kloz from now on.
  19. uguntde

    Kloz ID

    That's my question. Can we assign a name to it?
  20. uguntde

    Kloz ID

    Yes there is a very well repaired crack in the back, left bottom, studded inside. Not close to the sound post. No soundpost patch on the front which is amazing for a fiddle this age.
  21. uguntde

    Kloz ID

    A violin without label, although one can see where the label was. One pece front and one piece unfigured back.I would say this has to be a Kloz of some kind. Georg II? The f-holes are untypical. Can supply more pictures for better ID. The top and bottom blocks more square shaped and not round (more what I know from French instruments). The corner blocks exxtend further into the (one piece) bottom rib than intot he C-bout ribs. Sounds nice, dark tone, typical for such a highly arched instrument