Recent violin repair of a very old violin. It had a Testore label and date 17.. inside. The last digits of the year were missing. Over a year in the works. The most amazing aspect was the sound when finished. It was wonderful

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Recent violin repair of a very old violin. It had a Testore label and date 17.. inside. The last digits of the year were missing. Over a year in the works. The most amazing aspect was the sound when finished. It was wonderful!!
#violinrepair #violin #testore #violinmaking #luthier #violinrestoration, **insta-location**, Ludwig

Joshua Bell Concert- Dueting with Bob Levine

March 3, 2015, Yesterday Joshua Bell came to Amelia Island for the Amelia Island chamber festival. It was fantastic. He played a full two hours including a set of encores from his Romance of the violin CD. Everyone was ecstatic. The venue was the plantation chapel and it was sold out, packed, no room in the Inn. I was honored to sit in the second row as a guest of Bob and Pat Henderson in thanks for my presentation and performance on violin making earlier this month.

 

Today, Bob Lavine called me up in ecstatic revelry from glowing from the wonderful concert with Joshua Bell. He asked if he could come over and see my violin shop. He came over and played a couple of instruments and then we broke out some duet music and we spontaneous played several duets together.

 

It was such a fitting conclusion To Joshua Bell’s fabulous performance that Bob and I played together through several duets. What a wonderful lifetime opportunity to handcraft violins and then have someone come over and play them together after such a fabulous concert with Joshua Bell. Making music both with tools and a bow. I’m in bliss.

Modeling the Violin, Computers the new Apprentices’

In Stradivarius’ day he and other violin makers used apprentices who often paid to work with the master for several years before being able to make their own instruments. These apprentices were initially given the most rudimentary work like sweeping and emptying the volumes of wood shavings created in a violin shop. Eventually they would progress to doing the labor intensive aspects of violin making, the purely mechanical task which must be done before the delicate craftsmanship of a master would be required.  Apprentices learned tool skills and honed their woodworking abilities, and also saved the masters innumerable hours of labor in the early task of creating a violin.

Today, there are few apprenticeships available. I actually completed one in ’85 as an electrician for UAW/GM. Much of my apprenticeship involved computer automation and robotics maintenance, a far step from making violins. But finally, that early work in computer automation, and many more years as a programmer etc in the IT industry bring me back to the work of the apprentice in a violin shop. As I’ve been making my violins, now on numbers 8 & 9, manually doing those mechanical woodworking steps; the algorithms and processes to automate some of the mundane work swirls around my head.

Make no mistake, a computer or CNC machine can not create a high quality violin. There are too many variables. Unlike something like an iPhone, a violin is made of wood. Each tree grows in a different climate, different moisture, on a hill, on a flat (hill sides affect the compression of wood grain). So, the material for two violins will vary in the grain density and this will affect the resonate frequencies of the completed instrument, which determine the tone of the instrument. An iPhone is made from steel, glass, and silicon; manufactured materials precisely controlled, and hence can be precisely manufactured. Violins are made from materials that mother nature creates, the violin maker must blend with nature’s results to craft a high quality violin.

In like manner computer automation can blend with the violin maker as an apprentice; doing the purely mechanical task, doing the repetitive manual tasks. With this objective in mind I’ve been doing some research and collecting of data sets to help violin makers use computer automation. Most violin makers don’t have 30 years experience in computers and automation, they have years and years of violin making experience; something I’m slowly working at. The last four years I’ve been learning how to make a violin using the traditional Cremona methods, as we understand them today. My mind has often drifted to the automation angle, but I’ve said no. No for two reasons. One, I’ve spent the last 3 decades working with computers, I want to create something old world, something more tangible than software. Two, without building the manual skills, the tool skills, the domain knowledge of how to create a hand made violin- using automation would be a waste of time. Working on violins 8 & 9 I know a little bit, mostly what the apprentices did, the mechanical aspects of the craft. It will take me many more years to garner the intuition to master the violin plate tuning, varnishing, etc etc required for a master piece.

In September I attended the Violin Society of America (VSA) convention in Indianapolis Indiana. My  head spun with information on all aspects of the stringed instrument world. I had the chance to see and play violins from the modern best makers; Sam Zygmuntowicz and Greg Alf. I held in my hands a Pietro Guarneri violin made in 1710. I was in nirvana. Most significant for this post, I met Dr Steve Sirr. Dr Sirr is a radiologist from the University of Minnesota (I had just been to the UofM on a computer issue, small world). For the past several years Dr Sirr has been making CT scans of some of the world’s greatest instruments. He currently has the scans of 40 instruments archived at the Smithsonian Institute. Dr. Sirr and I spoke and he made the raw CT DICOM data files available to me. From these CT scans I’m making the solid models required to prepare the machining instructions to enable a computer numerical machine (CNC) to be my apprentice. Part of my hope is to use the CNC as an apprentice to speed the mechanical work so I can focus more on understanding the more intuitive craftsmanship and tuning aspects of creating fine violins.

Dr. Steve Sirr and Sam Zygmuntowicz with the Strad 3D Project as well as many others have graciously shared their work in capturing these CT scans. In like manner I’ll be posting the model files on this site as I continue this fascinating project.

 

 

Stradivari Vn ‘Sunrise’ 1677:  (STL 3D file exported from CT DICOM)  (Blender solid model file created from STL)

Stradivari Vn ‘Betts’ 1704:  (STL 3D file exported from CT DICOM)  (Blender solid model file created from STL)

My journey continues…..

 

 

 

Violin Maker Visit: William Mason Violins Fredricksburg, VA

July 11, 2014: Visiting William Mason Violins, Fredricksburg, VA

Today I visited Bill Mason of William Mason Vi). I had met Bill at the Southern Violin Association’s (SVA) annual meeting on May 25th in Atlanta (http://southernviolinassociation.com or on FaceBoohttps://www.facebook.com/SouthernViolinAssociation). The SVA is an association of violin makers and violin shoppes located in the Southern states. The purpose of the SVA is to promulgate information about violin resources in the South as well as to provide a networking and learning environment to promote additional skills for its members. The May 25th meeting was my first event with the SVA, we had two shoppes represented and several makers. Bill and his wife Elaine delivered a presentation detailing how they got their shop started and the business model they are implementing in Fredricksburg Virginia.

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There was also a presentation at the SVA meeting by David Chandler illustrating how he collects downed North Carolina red spruce in the Appalachian National Forest for the tops in his violins. David gave each of the participants a block of red spruce to use in our instruments.

After the presentations, makers showed their instruments to each other and garnered suggestions, accolades, and additional insight on how they can continue to improve their craftsmanship in the art of making violins.

The meeting was a success in many respects; networking, information, and most significantly for me being with a group of people dedicated to making great violins. Bill had asked me to send him one of my violins to consign in his Fredricksburg shoppe. He also extended a warm invitation to visit he and Elaine if I was ever in Northern Virginia.

Well, this week I was in Northern Virginia and took a morning to visit Bill and Elaine at their shoppe in Fredricksburg. They lease space in a historic building in downtown Fredricksburg. The building used to be a creamery, today it houses William Mason Violins. Bill has developed a very interesting business making violins, selling violins, and passing on the craftsmanship to several apprentices. The historic building has space for Bill and Elaine to live over the shop, a machine room, a work room with space for 9 apprentices, a varnishing room, a show room, a practice room, a bow repair room, and plenty of storage for the businesses rental violin cases, instruments, bows etc. The space is perfect for hosting violin and bow making workshops. Bill plans to expand the facility to house a performing arts space for chamber music and small ensemble performances. William Mason Violins is gradually becoming an “Everything Strings” facility in historic downtown Fredricksburg Virginia.

Bill spent 3 hours with me going from room to room and bench to bench comparing notes, sharing tips and tricks and chatting about our shared passion of violin making. It was a wonderful visit, a wonderful trip. If you ever get near Fredricksburg Virginia, I highly recommend you stop in and visit William Mason Violins.

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Violin Making: Setting the Bass Bar in Fiona

One of the mysterious steps in violin making is setting the bass bar. There is much discussion about the bar tension, placement, and thickness; all factors that affect the tone of the final instrument. Also all factors that can not be changed after the top is glued on. Today I shaped, glued, and trimmed the bass bar in Fiona. Oh all the questions? The wondering? The acoustical samples and science. Every article I’ve read on “What makes the sound of a good violin?” Now I see and measure the details, someday I’ll understand or get a ‘feeling’ for the effects and results.

Tap Tone Test

I took tap frequency readings and weighed the plates prior to cutting the F-Holes, after cutting the F-Holes, after setting the bass bar, and now again after trimming the bass bar. After trimming the plate resonance frequency is at the same point as prior to cutting the F-Holes. The removal of wood for the F-Holes, the additional stiffness and trimming of the bass bare canceled each other the F-Holes to resolve to the same acoustical values.

Fiona, #6, is a bit lower frequency than Diana, #4. Diana had an F for the front plate and F# for the back plate. Fiona is 1/2 step lower with D# for the front and F for the back. This is also what Claude, #3, measured at. Fiona also weighs a bit less for each plate, with equivalent dimensions, which is expected with the lower frequencies. The wood has a little bit less density.

Continual Learning

As I build each instrument and record the resonate frequencies and plate weights. I can observe the effects as the building process progresses, as well as the final tonal effects on the instruments. The more I build, the more I understand. Right now I’m hypothesizing and observing.

There is a violin maker in the Maestronet blogs who used to work at the Jet Propulsion Laboratory, a Mr Don Noon. His tag line reads, “Making fiddles ain’t rocket science…  it’s much more complicated.”

Everyday, new lessons, more progress; the path to mastery

 Photos journey of setting the bass bar

Fiona with a fitted bass bar. The plexiglass brackets hold the bass bar in position while checking the fit. Chalk is spread under the bass bar, and then the bar is pressed into place, removed, and inspected for even chalk on the bar. Where its not even, the chalk and a little wood is removed until the bar fits perfectly.
Fiona with a fitted bass bar. The plexiglass brackets hold the bass bar in position while checking the fit. Chalk is spread under the bass bar, and then the bar is pressed into place, removed, and inspected for even chalk on the bar. Where its not even, the chalk and a little wood is removed until the bar fits perfectly.
Top view of Fiona's bass bar. The bar is placed in proportion to the center line of the top plate. The placement is close to the line of the G string, the lowest string on the violin. The purpose of the bass bar is to transmit the lower frequencies down to the larger 'bass' end of the violin's vibrating top plate.
Top view of Fiona’s bass bar. The bar is placed in proportion to the center line of the top plate. The placement is close to the line of the G string, the lowest string on the violin. The purpose of the bass bar is to transmit the lower frequencies down to the larger ‘bass’ end of the violin’s vibrating top plate.
High Tech bass bar clamps :-) You can purchase cast iron C clamps to span perfectly over the bass bar. I like to use the simplest technology that works. Stradivarius did not have cast iron spanner clamps, but then he probably didn't have rubber bands either....
High Tech bass bar clamps 🙂 You can purchase cast iron C clamps to span perfectly over the bass bar. I like to use the simplest technology that works. Stradivarius did not have cast iron spanner clamps, but then he probably didn’t have rubber bands either….
The under side of my bass bar clamps, wine corks. The corks are cut in half and line up with the bass bar. Without them you don't get even pressure, also the cork (or modern plastic corks in this case) provide a nice pliable surface to avoid denting the soft spruce.  Once done with the process, I celebrate by finding a new wine cork :-)
The under side of my bass bar clamps, wine corks. The corks are cut in half and line up with the bass bar. Without them you don’t get even pressure, also the cork (or modern plastic corks in this case) provide a nice pliable surface to avoid denting the soft spruce. Once done with the process, I celebrate by finding a new wine cork 🙂