• Content Count

  • Joined

  • Last visited

About uguntde

  • Rank
    Senior Member

Contact Methods

  • Website URL

Profile Information

  • Gender
  • Location
    Birmingham UK
  • Interests
    Science, NMR, string instruments

Recent Profile Visitors

2882 profile views
  1. uguntde

    Viola rib height

    A while ago I studied the Guadagnini violas on Cozio. I started with Hargrave's blog on a Guadagnini he found in China. He says he lost his notes at one point, or they were stolen, but still gives a good description of that instrument. Several on Cozio had the same body length (402mm, just above 16"). The rib hight was consitently 37/38. I find violas with a powerful C string benefit from tib height up to 39/40. Rib thickness is also important as much of the C-string sound is an air resonance.
  2. uguntde

    Blanchard Fake?

    A Blanchard is very hard to fake because his workmanship was quite exquisit. If it is a fake it is easy to identify as such. Glue marks could only be from a bad repair. The difference in price tag of a Blanchard and a fake is at least a factor of 10. Whether there were others in Blanchard's workshop who made instruments and used such a label I don't know.
  3. The reaction of rosin and linseed oil is chemically a cross-esterification. Lineolic acid gets attached to abietic acid. In solution such reactions are base catalysed. I assume that something like this is happening in hot rosin, especially, as the lime is added in water. Lime light just catalyse the ester cleavage of the abietic acid. Industrially anothet catalyst is used which I need to look up. This is just an assumption, as I know little about such chemistries.
  4. The strong lip at the outside f holes and the edges including the brown varnish look like a bad attempt at some Degani features.
  5. Bernardel made instruments for Northern Africa, which have somewhat ugly pins in all 4 corners.
  6. Very polite way of judging an instrument . Most English concertmasters (orchestra leaders) can't afford anythng like that and still find good souding instruments.
  7. uguntde

    Bow ID

    No stamp on mine - exactly the same nice decortions, and all in nickel. I would say my stick is just Brazilwood.
  8. WHat Martin describes has been the case for many centuries, but now modern makers from Italy don't have much of an advantage any more. American violins are now probably the most expensive, driven by soloists who used their instruments (e.g. Stern and Zygmutovicz). If one wants a 19th or 20th century violin there are some real beauties from German makers. Gärtner, Winterling are among my favourite 20th century makers. Investment wise it is Italian (Fagnola, Oddone, Bisiach ...). They were also good, but not better than the best German makers of that time. Much of this market is now driven by Asian buyers. Unlikely that German violins will surge in value, maybe except for good authentic Kloz family violins. For good German instruments it is a buyer's market.
  9. uguntde

    Bow ID

    I assume this is a German trade bow, probably not even pernambuco. But the frog, nickel mounted, has some nice chasing. I wonder who could have made this bow?
  10. They say it is tuned E-A-d-g-h-e' as a guitar (h=b). Here a blog about it: And wikiedia also has the information about the tuning according to which the only old piece is that by Schubert but since a copy of an Arpeggione was made some more have been written for it (probably transcriptions). This is what it sounds like: Intonation isn't great.
  11. That's "Anleitung zur Erlernung des von Hrn. Georg Staufer neu erfundenen Guitare-Violoncells" = Instructons to learn the guitar cello that was invented by Mr Georg Staufer.
  12. Is there any piece beyond Schubert's sonata that was written for the Arpeggione? Apparently the instrument had disappeared by the time Schubert had written it.
  13. There is this article, which I think is by Don Noon, our fellow maestronetter. It refers to this average table in the Strad for the 'key modes' of Stradivarius violins (I attached a screen shot of the spread sheet). I wonder whether anything along these lines exists for violas. What viola sound are we looking for? I know what I like, they must not be 'nasal', I like a strong C-string, I like it if they also have an edge in the upper strings (whatever this means). I have hardly every seen a viola at an auction that I liked.
  14. I am trying to get the higher frequencies - they depend a lot on the environment, one almost needs a sound isolated room - which I do not have. Any laptop fan in the background will add a signature. Higher frequencies from from frequency modulating power supplies (dimmable LEDs etc) all add to that sound spectrum. I work a lot with frequency analysis in science (I do something called NMR) and we would not accept a signal that does not have a signal to noise ratio of around 5 and is clearly reproducible.
  15. Thanks for this detailed response.