Posted on January 13, 2010February 7, 2024 by Dale Phillips Letter: Circles in Classical Violin Design Letter: Circles in Classical Violin Design by Jim Blilie Originally published in American Lutherie #89, 2007 Hi Tim, I’m sure Michael Darnton has infinitely more experience with violin design and a much more sensitive eye for the form of violins than I do (See The Power of Circles). That being said, I was really bothered by his article. Mr. Darnton writes that his theory of circles in the design of classic Cremonese violins seems to be the only one that will produce aesthetically pleasing shapes. I have no doubt that circles were used extensively in the design of violins, since they are much easier to draw than parabolic, hyperbolic, or elliptical curves. But he goes on to say that essentially all the extant violins of the height of the Cremonese school do not follow his plan. He posits various reasons for this, but in engineering, if the data don’t match your theory, you go back to the drawing board and find a new theory! Become A Member to Continue Reading This Article This article is part of our premium web content offered to Guild members. To view this and other web articles, join the Guild of American Luthiers. Members also receive 4 annual issues of American Lutherie and get discounts on products. For details, visit the membership page. If you are already a member, login for access or contact us to setup your account.
Posted on January 11, 2010February 7, 2024 by Dale Phillips Letter: Replying to Keith Hill’s Opinion Column Letter: Replying to Keith Hill's Opinion Column by David J. Cohen, Ph.D. Originally published in American Lutherie #64, 2000 Dear Tim: I’m led to wonder at the origin of some of Keith Hill’s ideas in his Opinion column in AL#63. In his first paragraph, he divided practitioners of lutherie and other crafts into those who love the craft — “good guys” — and those who love being involved in the craft — “bad guys.” I think such questioning of motives is divisive. If I was put off by his first paragraph, his third and sixth paragraphs got to me personally. As a lifelong chemist, chemical educator, and avocational aficionado of musical acoustics and lutherie, I did take umbrage at his labeling of acoustical physics as “pseudo-science.” So I want to be careful not to attack him personally. He expressed his opinion well. I think his opinion deserves a response that is considered and not angry. Become A Member to Continue Reading This Article This article is part of our premium web content offered to Guild members. To view this and other web articles, join the Guild of American Luthiers. Members also receive 4 annual issues of American Lutherie and get discounts on products. For details, visit the membership page. If you are already a member, login for access or contact us to setup your account.
Posted on January 11, 2010February 7, 2024 by Dale Phillips Letter: Violin String Tension Letter: Violin String Tension by Ernest Nussbaum Originally published in American Lutherie #9, 1987 Dear Tim: I’d like to point out that the article “Fiddle Facts” contains at least two non-facts. 1) The author says that raising the pitch of a violin’s “A” string to 442 (presumably from 440) is an increase of 0.05%. Wrong: it’s 0.5%. 2) More serious: He says that string tension is thereby increased by 10%. He should have said 1%. (Raising the frequency increases tension according to the square of the raise, i.e., (442/440)2 which is 1.009 or about 1.01 — therefore 1% higher. Maybe it’s bad for old violins to replace gut strings with steel. On ’cellos it seems to do no harm in most cases.
Posted on January 10, 2010February 7, 2024 by Dale Phillips Letter: Guitar Dimensions and Harmonics Letter: Guitar Dimensions and Harmonics by Joe D. Franklin Originally published in American Lutherie #66, 2001 GAL Members, The resonant chamber or soundbox on a guitar is the greater half of its tonal success. If the air enclosed in this box can resonate naturally at some harmonic of the speed of sound, then you have a winner. This is the only part of the guitar that is capable of maintaining polyphony at a level amplitude or volume throughout any given song. Two designs from the past have met these standards, the 1864 Torres and the 1935 Hauser/Torres, and later the 1943 Hauser that used an inversion on the concept of where the fundamental bass might reside. Become A Member to Continue Reading This Article This article is part of our premium web content offered to Guild members. To view this and other web articles, join the Guild of American Luthiers. Members also receive 4 annual issues of American Lutherie and get discounts on products. For details, visit the membership page. If you are already a member, login for access or contact us to setup your account.
Posted on January 1, 2010March 11, 2024 by Dale Phillips Three Holes are Better than One Three Holes are Better than One by Robert Ruck previously published in American Lutherie #91, 2007 See also, “There’s a Hole in the Bucket” by Cyndy Burton “Sideways” by John Monteleone “Herr Helmholtz’ Tube” by Mike Doolin Classical guitar maker Robert Ruck pioneered sideports for nylon string gutiars. He describes how the idea materialized out of several experiences going back to the begining of his career in the ’60s. A strong advocate, he now offers ports as an option on all of his guitars. Since late 1999, I have regularly used sideports in my guitars. My experience with the resulting 150 or so ported classical and flamenco guitars with various designs is consistent, predictable, and all positive. There is an increase in loudness both for the player and for listeners. In listening tests with several fine players, we have concluded that the guitar is louder for the audience, too. The fundamental tone quality of the guitar stays the same, but it is louder, has stronger trebles, and has a more balanced quality for the player, opening up an area of sound around the player that is not normally heard. Since we as players sit somewhat asymmetrically to the guitar and the conventional soundhole is positioned to our right, there is an area on the left side of our heads that does not receive as much sound as the right side. We grow up hearing the guitar this way, so we never question it. Players comment that it’s as if one is hearing the guitar in stereo for the first time. Become A Member to Continue Reading This Article This article is part of our premium web content offered to Guild members. To view this and other web articles, join the Guild of American Luthiers. Members also receive 4 annual issues of American Lutherie and get discounts on products. For details, visit the membership page. If you are already a member, login for access or contact us to setup your account.
