Discussion Posts

  • Posted in: Pianotech

    Geoff, Tune each piano using OTSP. The problem is that the highest octave on the Steinway will be much sharper than on the Kawai. Set the high treble slider on the Steinway to -3 and recalculate the tuning. That will lower C8 by 9¢. Look at the difference ...

  • Posted in: Pianotech

    Geoff This topic has been discussed several times over the past 10 years. If memory serves me correctly, I think the prevailing thoughts are to tune each piano to itself. Unless there are going to be passages with both pianos playing the same notes, ...

  • Posted in: Pianotech

    I have an appointment coming up for a tuning that involves a Steinway D and a Kawai GS-70 on stage for a piano duo concert. By now you already know what my question is. What's the best way to tune them so that they don't strangle each other? Customer ...

  • Posted in: Pianotech

    Something just occurred to me (possibly this was delineated and I missed it): At what partial level us the single octave widened 1.23 cents...2:1...4:2...6:3...etc? My educated gues would be 4:2, but I was wrong once... 😉 Peter Grey ...

  • Posted in: Pianotech

    Two new tracks have been added to the SoundCloud samples. Pure Twelfth ET and KV 1.3 https://soundcloud.com/search/albums?q=temperamental%20journey ------------------------------ Steven Rosenthal RPT Honolulu HI (808) 521-7129 ----------------- ...

  • Posted in: Pianotech

    Here's a Dropbox link to the Stopper Pure 12th ET doc: PureTwelfthsEqualTemperament.pdf dropbox.com

  • Posted in: Pianotech

    Gannon Rhinehart wrote: "I have a few questions concerning P12 temperaments. Do you generally set a standard temperament and then use P12 intervals going to the treble and bass from there? Or do you set a wider P12 temperament first?" The idea ...

  • Posted in: Pianotech

    I attach the P12 bearing plan written by Bernhard Stopper. He used a gadget he called a "spanner" -- looks like a wooden clothes hanger with key pounders attached to each end - made to exactly play a P12. Alternatively you can rig a weight as Maggie uses ...

  • Posted in: Piano History

    I have seen a rather large Knabe, I believe over 10 feet. It is over in Shanghai. A friend of mine owns it and I asked for pictures. I'll see if he responds. Vince Mrykalo 드림 An error in thinking does not become truth by reason of ...

  • Posted in: Pianotech

    Gannon: These are great questions. They get at the heart of temperament tuning. Drive the 5ths closer to pure and the 4ths will sound "bad." So the temperament mission is to determine the balance to make 5ths nearly pure with 4ths that aren't too wild. ...

  • Posted in: Pianotech

    I agree with David. The pre needle is important. I would like to hear what is a good base pre needle? In Dale's shop, we clamped the hammers together and he liked the small end of an egg shape for the tips. We didn't do a pre needle. We did use the belt ...

  • Posted in: Pianotech

    I have a few questions concerning P12 temperaments. Do you generally set a standard temperament and then use P12 intervals going to the treble and bass from there? Or do you set a wider P12 temperament first? Is there any stretch heading to the treble ...

  • Posted in: Pianotech

    Dear Richard Really great to hear of your experiments Kirnberger III really works well on the straight strung 18th and many 19th century instruments - but I wouldn't recommend it for the Bechstein and on which I've always used a Kellner. Personally ...

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    1974-78 Journal

    Posted in: Pianotech

    If anyone has Journals from 1974 - 1978, please PM me. Thanks Wim ------------------------------ Willem "Wim" Blees, RPT St. Augustine, FL 32095 Tnrwim@aol.com ------------------------------

  • Posted in: Piano History

    As an owner of the Fazioli F308, one of the greatest challenges to super-sized pianos is the balance of the lower and upper sections. The F308 achieves this. The extra soundboard area under the upper section enables tremendous power of the high range ...

  • Posted in: Piano History

    Stewart and Sons 3m 108 keys https://www.stuartandsons.com/stuartpianos.html ------------------------------ Larry Messerly, RPT Bringing Harmony to Homes www.lacrossepianotuning.com ljmesserly@gmail.com 928-899-7292 ---------------------------- ...

  • Posted in: Pianotech

    Hi David, Just to let you know, I've tuned a Zuckerman Z box harpsichord to the Pleyel chromatic harp bar tuning using your offsets entered into the PianoMeter app. If you've not tried it, you may want to on an Erard or Pleyel. That day I tried ...

  • Posted in: Piano History

    An Australian teenager built a 19 foot one https://www.atlasobscura.com/articles/adrian-mann-giant-alexander-piano Wayne Stuart built a 9 octave piano Paulello built a 102 note piano Around 1840, French piano maker Pape exhibited ...

  • Posted in: Pianotech

    I don't, I prep the hammers (preneedle, file to square the crown and remove the cupping) before I bore them and then bore them as the center pin/string ht differential dictates. If you wanted to add 1.5 mm (1/16th") I don't see any harm. Depending on ...

  • Posted in: Pianotech

    Richard - yes - very good point I'm fascinated by Erards and whilst having got close haven't tuned one yet - but suspect that they shine better in UT rather than ET which from the instruments I've heard rather grate in their harmonics tuned in ET. ...

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    RE: Perfect Pitch?

    Posted in: Pianotech

    Russell, Dr Oliver Sacks describes (chapter 10: Cochlear Amusia: "Musicophelia") a very similar situation he encountered twenty some years ago with a composer, in his late 60's, Jacob L. (full last name not given) in which nearly overnight he began ...

  • Posted in: Pianotech

    Thanks for the reminder, Wim! I just ordered 2 off Amazon - they are surprisinly inexpensive. First Alert Home1-2, Standard Home Fire Extinguisher, Red 2pk, White, 2PACK - Amazon.com One thing I worry about is solvents that produce heat when thrown ...

  • Posted in: Piano History

    I've seen a Youtube video of a 90 note Erard, but don't have the link handy. Very nice, too! -- Richard Adkins Keyboard Tuning and Maintenance Curator of Instruments Notice: This email and any files transmitted ...

  • Posted in: Pianotech

    It seems as though this study has forgotten to include French composers. Or maybe they should do a separate one, especially the mid-late 19th century and into the 20th Century! -- Richard Adkins Keyboard Tuning and Maintenance Curator ...

  • Posted in: Pianotech

    Regarding a fire extinguisher. When I had my store in St. Louis, in order to get a license for the store, I was required to have several, and have them inspected every year. Even when I had my shop next to my house, although it was not a requirement, ...

  • Posted in: Pianotech

    Thanks for responding everyone. Yes, my instinct was indeed to tip the lamp so the wick would soak up alcohol. And I do have a Weller heat gun. I may try a different fuel. By the way, someone mentioned having a fire extinguisher. I wonder how many tech ...

  • Posted in: Pianotech

    I have one of the lamps you show in the picture. I've had some success with it. I did have a little trouble with leakage. Thin CA around where the tube goes into the base cured that. I'm sure they must be made in China. I bought mine on EBay. When it's ...

  • Posted in: Pianotech

    Mark, You're so "modern"...don't you like that 19th century feeling of gently coaxing wood into position with fire? Not to mention the occasional drips of burning fuel that.you need to keep an eye out for...it's so "heartwarming"...like sitting ...

  • Posted in: Pianotech

    I have 3 alcohol lamps that haven't seen the light of day since I bought a Weller heat gun (which you will need anyway for WNG composite shanks). They're expensive, but superior in every way.

  • Posted in: Pianotech

    Some time ago I started noting a bibliography on temperament which might be of interest. Below are references compiled up to 1950. Best wishes David P (1) 1874 Temperament; Or, the Division of the Octave [Part II] R. H. M. Bosanquet ...

  • Posted in: Pianotech

    Scott, As others have said, you might need to tip the lamp over to allow more alcohol to run down to the tip. These lamps are also intended to run warm. Try warming/heating the shaft and tip to partially vaporize the alcohol. Use caution, you don't ...

  • Posted in: Pianotech

    I have the "Aladdins lamp" type with about a 4-5" long tube out the side for the wick. I have always used nearly straight methanol rather than DA (which can often contain water right out of the can). I buy "HEET" at the auto parts store which AFAIK is ...

  • Posted in: Pianotech

    The humidity in your garage will be part of the answer. The strings' pressure on the board are the limit on how much the board can swell upwards with additional moisture content. When the board continues to take on moisture content after hitting this ...

  • Posted in: Pianotech

    Joe, There wouldn't be "extra" blow distance, there would be reduced blow distance. The "taller" the hammer (the longer the bore distance), the less blow distance there is given a uniform shank height at rest across the action. I never really worried ...

  • Posted in: Pianotech

    I don't have any experience using an alcohol lamp, but in order for it to work properly, the entire wick needs to be soaked in alcohol. I would suggest you tip the lamp so that the alcohol can drip through the spout with the wick can get soaked. ...

  • Posted in: Piano History

    Bill, Thanks for posting. I was actually considering, one of these days, writing a Journal article about monster pianos. So far in my notes I have the 11' Challen, Adrian Mann's 18', David Rubenstein's big model (12' I think), and a Chinese 15' grand ...

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    Schaff alcohol lamp

    Posted in: Pianotech

    Hi everyone, Last year, I purchased a Schaff alcohol lamp, product 185. When I first tried it, it worked well and I used it on a home regulation. However, recently I can't get it to perform well. I use denatured fuel alcohol and there's plenty of ...

  • Posted in: Piano History

    In his "Notes of a Pianist," Gottschalk referred to his two "Mastadon" grands in 1863 as 10 feet long and 8 octaves. While working through the Chickering production books this year I have made a list of "Monster" and "Mammoth" grand pianos built ...

  • Posted in: Pianotech

    Oh, that action is toast. All felts and action parts will need to be replaced. I will probably soda blast the action frame and keys, just to make sure all of the mouse junk of removed. ------------------------------ Joe Burros Cell: 646-410-7174 jbcello@gmail.com ...

  • Posted in: Pianotech

    So, David, I have a question. After you are done with all of your hammer prep, hammer to string mating, piano pounding (if you do that), and voicing, how much extra blow distance are you left with to compensate for future hammer wear? ------------------------------ ...

  • Posted in: Pianotech

    Hi David, You are right, too many so's in my post. I took them all out except for one so. I guess I was feeling just so, so when I first typed it. Joe ------------------------------ Joe Burros Cell: 646-410-7174 jbcello@gmail.com www.fmi-newengland.com ...

  • Posted in: Pianotech

    Starting a temperament journey with a mild near-equal temperament as Ron advocates is going to be of great help to many. Many might want to compare major thirds and other intervals by themselves but actually not in the context of the music. This is ...

  • Posted in: Pianotech

    Joe, Golly, that's al lot of "So"s! Now to the point, I always added 1.5mm, for several reasons, one being the matter you're concerned with. David G. Hughes, RPT Baltimore Chapter ------------------------------ David Hughes RPT Vintage Case ...

  • Posted in: Pianotech

    It doesn't hurt the piano without strings, but with mice infestation, I would double check the action. Mouse poo and pee are very caustic and they love felts.

  • Posted in: Pianotech

    Hmm....I thought removing the strings had the opposite effect. I guess it depends on what wanted vs unwanted is. I'd hate to commit to answer because of terminology police. -chris

  • Posted in: Pianotech

    I am getting ready to install a set of hammers. I am already planning to add about 1mm or so to the hammer bore measurement to compensate for future hammer wear, so the hammer will understrike just a little bit after installation. But I am also thinking ...

  • Posted in: Pianotech

    I have a Steinway M sitting in the garage that had a big mice infestation while stored (on its side) for 10 years in someone's shop. I'd like to take all the strings off and then disinfect the piano inside and out before bringing it inside. I will need ...

  • Posted in: Pianotech

    Anthony, Your post exactly describes my personal experience with absolute pitch. I could always recognize and name pitches instantly, from out of the blue, with no other reference tone necessary. I didn't even have to think about it, it seemed completely ...

  • Posted in: Pianotech

    Yes - growing up as a child playing on a 19th century instrument a semitone down ruined any hope of PP for me. Only now am I (sometimes) able to hit an A although I find it relatively easy a lot of the time to recognise which note I'm hearing in performance. ...

  • Posted in: Pianotech

    For what it's worth, my mother is a Suzuki music teacher, but unlike traditional Suzuki teachers (who don't teach music reading) my mom makes all of her students do music reading flash cards from a very young age. She claims that roughly 1/3 of her students ...