Posts Tagged ‘piano technology’

What does quality mean?

Eric | May 17th, 2010 | 2 Comments »

Quality is a term that is passed about with great ease in the piano industry. The term itself has a rather benign meaning; “high grade, superiority, excellence”. But what does that mean in the piano world and is there any reason the term high quality should be limited to certain makers? If you’ve been exposed to marketing in the piano industry you realize that just about any construction trait can be justified and explained, even if it seems in direct opposition to other makers. For example, the proponents of the new Phoenix bridge system say that it eliminates the need for down bearing in a piano. However in traditional design down bearing is, next to tuning pin torque, a fundamental requirement. More important, frankly, than 88 keys! Quality is not necessarily the most important trait of a piano. Calling a piano high quality may mean next to nothing especially if

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August Förster tour Part 2

Eric | November 23rd, 2009 | 1 Comment »

I learned a couple of interesting things about Forster pianos during my visit. Click on each thumbnail to enlarge. They have this cool slot cut in the inner rim that allows it to resonate somewhat separately. I’ve seen a number of Forster pianos over the years but had never noticed it, not that it is easy to notice on the completed piano. You’d have to look carefully at the very bass end where the soundboard meets the inner rim and ask yourself why there appears to be a very precise gap there.

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Travels – Florida

Eric | October 10th, 2009 | No Comments »

Fall means catching up on some travel and I headed south to the Orlando area and Naples. I flew into and out of Orlando, driving down to Naples and back. This is a bit of a drive but I had a pretty nice car due to an upgrade from Hertz. I visited my dealer who also handles Steingraeber and saw my first Steingraeber carbon fiber soundboard. The idea here is NOT that carbon fiber works as well as wood. I heard it and it doesn’t. The point is that this allows high quality pianos to be installed in hostile (at least to pianos) environments that would ordinarily eat soundboards for lunch. My understanding is the the Moscow Conservatory owns a couple of these and that makes sense. Harsh climate, long cold winters, old facilities with no chance of adding enough humidity to the bone dry winters. This board sounds reasonable

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Book Reviews

Eric | October 2nd, 2009 | No Comments »

There are 2 books I’ve been reading lately, one new and one not so new. The Voice of the Piano by Andre Oorebeek is a welcome addition to the sparse list of books on piano technology. This book is a very clear and thorough examination of the process of high end piano voicing, which concentrates (but is not limited to) manipulating the shape and density of the felt of piano hammers. Oorebeek brings some light to an area that has traditionally been considered a black art, mainly because it is so hard to talk about. Even with his clear description of techniques, it really doesn’t mean anything if you can’t hear the progress and results. However it holds a lot for experienced technicians as well as piano lovers who are interested in their instruments. Next, to be clear, I really do read this kind of stuff. Virgil Smith has long

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Tuning part 2

Eric | June 9th, 2009 | No Comments »

A single piano key sets into motion a set of 3 strings, all set in motion by the same hammer and all tuned, ideally, to the exact same pitch. This collection of 3 strings is called a unison. One usually sets a temperment by muting off 2 of the 3 strings in each unison over the temperment octave. This allows you to really focus on specific individual partials between the note you are tuning and the note you are tuning from. This is usually done by threading a thick felt strip between each of the unisons, muting the outside string of each. You then tune the center string as the reference. Setting a temperment is a really process of adjusting 12 variables, each of the strings in the octave. making those fine adjustments is considered much easier to do with one string at a time, and then, when you are

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Fixing my piano – now the work begins

Eric | June 1st, 2009 | 2 Comments »

My Yamaha CFIIIS came back from PianoWorks in Atlanta and was installed in Charleston. It was very nicely strung with new pinblock and treble bridge cap. Flawless delivery to Charleston sounding very good on arrival. Good is relative, of course. The parts PianoWorks did were very very good. The sound of the hammers and their presence in a midsize room was harsh. They will only begin to sound acceptable with a couple of hours of serious voicing, and that can’t happen until the piano is tuned and very stable. To me, that’s at least 10 tunings. I just have to get started. I haven’t tuned a piano in a year and before that probably 2, so I’m rusty. The skills of tuning stay with you, like riding a bike. The facility and confidence, however, have to be painstakingly, patiently rebuilt.

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When is it not a Bosendorfer?

Eric | March 25th, 2009 | No Comments »

Saw a model 200, about 30+ years old, rebuilt by a reputable shop. The original Schwander action had new Renner whippens. The hammers were Renner blues, the bass strings probably Mapes.  While overall the work was of reputable quality, it was a long way from Bosendorfer and had this strange burnt orange, thick lumpy finish on the plate. The real question is, what is it? I would argue that it is not a Bosendorfer anymore since so many of the parts were not original. This flies in the face of common rebuilder philosphy, at least here in the US. This approach comes from the experience with American Steinway which says that a good rebuilder can actually make a piano BETTER than the original. The issue is that assumptions made about one make of piano do not translate directly to another and most of the tweaks that people would take for

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Found David Andersens Blog today

Eric | February 25th, 2009 | No Comments »

David Andersen is a very interesting high end piano technician in Los Angeles. I attended one of his tuning seminars at the PTG convention in Rochester. Very very interesting, holistic approach to life as well as tuning. Here is his blog, one of the few I have found by high end piano technicians.

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Bluthner 3

Eric | April 29th, 2008 | No Comments »

And the 3rd unique feature, in my opinion, is the 4th unison string in the treble. This string is raised above the level of the other 3, so the hammer does not strike it. It’s purpose is to vibrate sympathetically, contributing to the unique Bluthner tone. It even has it’s own little damper.

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Bluthner 2

Eric | April 24th, 2008 | No Comments »

Bluthner was the only maker of the 3 that allowed me to take photos. As Christian said, one can take all the photos one wants, you still won’t be able to build a Bluthner, and he’s right. The factory is a familiar sight of individual craftspeople working on individual pianos, with a mixture of machines for doing various steps, primarily wood working such as planing and trimming. Rim Construction There are, in my mind, 3 unique structural features of the Bluthner. The first is the sectioned inner and outer rim. Bluthner uses a laminated rim, as is common in piano building. To those new to this, laminated simply means layers of red beech glued together in a mold. This is a very familiar and traditional method of making a piano rim. However, instead of being bent all in one piece, they are built in sections and then joined together. The

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