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#2192935 - 12/05/13 01:43 PM Rust Never Sleeps  
Joined: Jun 2001
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Jolly Offline
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Jolly  Offline
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Louisiana
What determines when an old upright should have rust removal done on the bass strings?

And how much of the original sound do you think comes back? 60%? 75%?


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#2193828 - 12/07/13 06:53 AM Re: Rust Never Sleeps [Re: Jolly]  
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Rich Galassini Online content
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Rich Galassini  Online Content
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Philadelphia/South Jersey
Originally Posted by Jolly
What determines when an old upright should have rust removal done on the bass strings?


When they get rusty.

Originally Posted by Jolly
And how much of the original sound do you think comes back? 60%? 75%?


Wow. I couldn't give a percentage.

I will say that when I see rusty strings my gut reaction is to replace them, Jolly. I think of cleaning the strings (steel wooling them) as more of a visual improvement. The treble strings will be cleaner, but still pitted and the bass strings will still have material between and inside the wrappings.

My 2 cents,


Rich Galassini
Cunningham Piano Co.
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#2193836 - 12/07/13 07:37 AM Re: Rust Never Sleeps [Re: Jolly]  
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Jolly Offline
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Jolly  Offline
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Louisiana
Since there is no such animal as acoustical crud (although that might be a good band name), I suppose the rust is the cause of tubby bass. With the ultrasonic cleaners we have today, I guess one could get all of the rust out of the bass string...but if one goes to that much trouble, it's probably more cost efficient to restring.


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#2194079 - 12/07/13 05:19 PM Re: Rust Never Sleeps [Re: Jolly]  
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Rich Galassini Online content
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Rich Galassini  Online Content
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Philadelphia/South Jersey
Originally Posted by Jolly
I suppose the rust is the cause of tubby bass.


While that is one cause, Jolly, windings on bass strings loosen a bit with age. This causes buzzing and tubbiness.


Rich Galassini
Cunningham Piano Co.
Phila, Pa.
(215) 991-0834 direct line
rich@cunninghampiano.com
Check out the Science Channel's "How Its Made" featuring our piano restoration:
http://www.cunninghampiano.com/how-its-made/
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#2194134 - 12/07/13 07:11 PM Re: Rust Never Sleeps [Re: Jolly]  
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BGJ Offline
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BGJ  Offline
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Texas
This is a little off topic, but it reminded me of a piano experience in Lafayette Louisiana. I was checking out a used Yamaha CF and had hired a good local tech to check it out. I thought the action was sluggish compared to my C7 and he proceeded with the investigation. Looking at the wrist pins he found some brownish green corrosion. He called the corrosion stuff "Gra-deaux" (sounds similar to "graw-doo", roll the R) with a great French Cajun accent. I thought it was a perfect word for it.

#2194190 - 12/07/13 09:35 PM Re: Rust Never Sleeps [Re: BGJ]  
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Jolly Offline
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Jolly  Offline
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Louisiana
Originally Posted by BGJ
This is a little off topic, but it reminded me of a piano experience in Lafayette Louisiana. I was checking out a used Yamaha CF and had hired a good local tech to check it out. I thought the action was sluggish compared to my C7 and he proceeded with the investigation. Looking at the wrist pins he found some brownish green corrosion. He called the corrosion stuff "Gra-deaux" (sounds similar to "graw-doo", roll the R) with a great French Cajun accent. I thought it was a perfect word for it.


It ain't much off-topic, as any kind of rust and corrosion is common in the Bayou State (Why do they call it the Bayou State? 'Cuz everybody got some kinda water by-you house. grin)

I've always heard the word pronounced with the rolling R, but with the "ah" sound, as in grah-doo. And you're absolutely right, it refers to any nasty crud...


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#2194201 - 12/07/13 09:51 PM Re: Rust Never Sleeps [Re: Jolly]  
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malkin Offline
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*sigh* Salt Lake City
Acoustical Crud Gradeaux. Now that's a proper name if ever there was one!


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