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Eric Johnson
Приєднався 12 тра 2009
Piano technology and related stuff.
Demo of traveling and burning - with soundtrack
Demo of traveling and burning - with soundtrack
Переглядів: 436
Відео
Traveling and burning intro
Переглядів 3814 роки тому
Introduction to traveling and burning...DON'T DAMAGE THE FLANGE. This is a basic introduction to traveling and burning. There is lots of subtlety not discussed!
Mixing B72 voicing solution
Переглядів 4,5 тис.4 роки тому
A quick primer on how to mix B72, a solution used for voicing and hammer hardening.
Piano string splicing 101
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WATCH IN FULL SCREEN! The video gets cut off otherwise. A quick description of how to do a basic splice on a broken piano string. DO IT IN THIS ORDER: LOOP, HAPPY BEND, THREAD. LOOP, HAPPY BEND, THREAD. You'll be unhappy if you try to make both loops first!
Repetition spring issue
Переглядів 9475 років тому
A problem with screw adjustable herz style repetition springs.
Beechwood Gets New Hammers
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The Beechwood Yamaha S4 gets new hammers, graciously supplied by Yamaha. This shows the basic work that goes into installing one section. Lots more to do but...you get the idea.
Removing the broken hammer shank stub from a hammer
Переглядів 1,7 тис.10 років тому
Removing the broken hammer shank stub from a hammer
Rebushing a flange 4 - fitting the center pin
Переглядів 1,2 тис.10 років тому
Rebushing a flange 4 - fitting the center pin
Three basic components of grand piano action
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Three basic components of grand piano action
Introduction to hammer to string fitting
Переглядів 2,3 тис.10 років тому
Introduction to hammer to string fitting
Goes off screen at a key moment alas
the threr lines on the hammer caused by the repeated striking on the strings does not affect the tone that much unless they're actually deep. These hammers don't require sandpapering.
Even thin string grooves have negative impact on tone. The impact is greater the further up the piano price/craftsmanship line you go.
I am a piano technician. This is the most confusing explanation I ever saw
Did you try it?
I waatched in full screen. Did you notice the top of the screen cut off your hands and tool?
Hi there iam wondering from size 1 to size 26 which size is considered to be a medium gauge piano wire?
Thanks for this. I just bought some B-72 and a hydrometer and this vide will really help me get started.
Does it need to be corrected often to maintain that octave shimmer? I’m guessing the octave string stops working as soon as that or any of the unisons drops in pitch?
Ah sorry this is one where they all have the same pitch. Tuned one yesterday where most of them were an octave up. Loved the rich sound but felt like it would not last very long no matter how stable the tuning since it needed to be so exact for the octave to resonate.
Piano wire that's 20+ gauge in diameter is where it gets more challenging..
What app did you use on the phone ? Thx
The butterfly spring can be adjusted in the piano with a hart tool, thus raising the adjustable screw. No dismantling required.
thanks for making this! I have to do it this afternoon in the field.... loop, happy bend (45º) thread....got it...
Bends are out of frame. Too bad.
For people who came here wondering whether or not the aliquot is tuned an octave higher or not: there was a different video where someone showed a very old Blüthner, which was different from the one in this video. TL;DR: If it's a modern Blüthner, same octave. If it's an older Blüthner, it's complicated. The one in this video has aliquot for the right most part of the piano, whilst the older Blüthner pianos also have aliquot that goes about somewhere in the middle part of the piano. The right most aliquots were tuned at the same level as the notes themselves, like in this video. The aliquots from the middle range were tuned one octave higher. You can find the video I'm referring to by searching "de-mystify bluthner's aliquot"
Great videos. Very informative. Exceptionally useful. One objection. Some of us like classical music. And some even detest jazz! Imagine that!. How small-minded can piano technicians get?
All lubes even dry ones , change in time .cpl, for instance is like heroiin
thank you for showing us the wire knotting . but I can not see it when you are knotting the wire because your tow hands is out of the camera .
I just have not gotten around to redoing the video but if you get round nose pliers and some piano wire you will see very quickly how to make the bend...it's very apparent once you know what the end result should look like.
Thanks. Is this BKB tip?
To my eye the teflon piece could be reduced in diameter so it would clear the spoon. Never encountered that problem on Schimmel's, 1986-1995
Trimming the teflon piece will address the symptom (catching on the spoon) but not the problem (weak repetition spring). I had never encountered it either...will only happen with a very weak rep spring and adjustment screw that has been screwed down too far. Any hertz spring whippen is susceptible to this.
Hello, greetings from Argentina!🤗 I'm having the same problem on a piano, what kind of product do you put on the hammers? is it an adhesive? Thank you so much!!
No adhesive! First choice is paraloid B72. See my video. 2nd choice is thinned lacquer that you get from hardware store. B72 is preferred if you can find it
I am so happy to find out this video, the rear/front duplex concepts are really interesting ! I have some questions, if you can please enlighten me: 1. If the harmonic effect that the duplexes create is important to the piano overall tone then why are there few piano manufacturers decide not to tune them ? As you said Steinway has untuned duplexes. Is it about the cost or something else ? 2. How do piano technician tune the duplexes ? Do they slide the metal pieces located near to the tuning/hitch pins at the both ends ? I am no piano technician, just a regular pianist but I found it SUPER interesting to learn how the piano operates. I just find it really cool of the piano technicians, who know everything inside the piano ^^. By the way, I am reading on your website, the video links lead me here. One more thing please 3. I read that the duplex scale only works at the capo area, which means from there to the bass notes, there are no tuning for the duplexes ? I just find it weird, why people mute the duplexes at the rear part of the middle & bass strings by a long felt rope. Thank you very much.
I'm also curious about the untuned duplex strings
Eric, is that the tool from Schaff?
Yes
0:35 - if you look very close... My Piano, 120 years old, has this about 4mm deep😆
Isto é perfeito 🙏
Great instruction. Is that sandpaper method suitable for a DIY voicing? I have a Baldwin grand that is starting to sound a bit metallic.
Gradito il come utilizzarlo sulla superficie della testa feltro del martello pianoforte Grazie
Cool.
Ken Eschete came up with B-72 for voicing. It’s amazing stuff.
I don't understand what the glove is for. Could you also introduce heat as a catalyst to the dissolving process: sealed jar with crystals and alcohol placed in hot water?
The glove just suspends the B72 pellets in the solution to speed up the dissolving. Otherwise they end up in a clump on the bottom that needs to be frequently broken up and stirred around. I have no opinion on heating...maybe.
Great video. Thank you
Toutes les réponses que je cherchais, c'est parfait. Merci !
Thats not a duplex scale. The extra string length has been deadened by felt. That where you find the duplex if so equipped
May I ask, why do they make the extra string length deadened by felt ? I thought the extra strings vibrate, makes a richer tone, duplex scale or something ? Thank you if you response.
Yes, Randy is correct: this is NOT a duplex scale. For a proper example of one, simply google it, or look up here on UA-cam.
Thanks for sharing. Anyone know after the voicing is done, will it return to the original timbre after some time?
Hi if you still need an answer here it is: Piano hammers will get brighter over time because of the felt compacting when you hit the key
What you mean 10 cents??
What you mean 10 cents??
Hi Ryan. Piano technicians divide a 1/2 step into 100 equal parts, called cents. We use this because it is the same for every 1/2 step throughout the range of the piano, unlike using frequency (like hertz) which increase logarithmically and so is a different number for every 1/2 step. 10cents is 1/10 of a 1/2 step and, in the piano tuning world, quite a lot!.
H Eric. I was present in your SE Regional PTG Zoom presentation last night and found it very beneficial. So much that I was inspired to look up this string splicing video this morning. Thanks for sharing your expertise with us!
Thanks Rick! Glad its helpful and thanks for joining us last night.
Cool technique. I wish you had a before/after sound. No biggie. I have a set of hammers that need more. What Does this technique create? I've been thinking of experimenting with this. Guess it's time to try. Have you tried b72 yet with same technique? Lots of questions. Thanks for putting this video out. I would suggest using a acid brush to do this. Its very exacting.
Does aftertouch make a big difference in sound vs not having it?
Well...yes, but not necessarily as a separate regulation. It's kind of complicated...it makes a BIG difference to the player so too much or too little aftertouch really affects the way the player manipulates the key and therefore the tone. But just regulating aftertouch a little does not necessarily have an impact.
So it means that AFTERTOUCH influences the sound/tone INDIRECTLY by affecting the playing of the pianist via mechanical feedback?
The best summary on the topic in the entire web¡
My guy, you need to learn to use your voice. You can make so much money off that voice of yours!
Umm...thanks, but learn to use it to do what?
@@EricJohnsonA voice over narrations, you have a great voice.
This is great. Your speed and inflection when speaking are just right, your explanation was just what I needed, and the angles were informative. Thank you!
Great video. Thanks. What did you do after this? To make the felt less hard. Isn't that's what needling is for?
Love the video! (And love those Ronsen Weickert felt hammers!) I was lucky to obtain a hardening protocol from the Ronsen co. written by their friend and technician-extraordinaire Dale Erwin. Interesting thoughts to combine with one's own. I'm sure they'd be happy to send to you (if you don't already have it).
What camical are you using? Paraloid b72?
In this video I'm using lacquer and thinner. This is before I discovered B72.
Thank you so much for making video on this topic ❤️💕 it's really helpful for me
My hammers look like the Adidas logo! They may be a bit overdue...
hahaha nice analogy : )
My hammers look like a broken egg... 120 years old and never done this repair to them
Saw your thumbnail and immediately believed that I'd the simplest, clearest answer. Not disappointed. Thanks
Please slow it down, cant really see the motion after letoff because you play the key too fast. :-)
The best explaination. :D
WOW¡¡¡ AMAZING¡¡ IN A FEW WORDS ALL WE SHOULD KNOW ABOUT IT. I t would be nice another video showing how to use the regulation screws. Thanks¡
Thanks for the suggestion and for watching.