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Liquid Rosin - Erhu - Other Instruments - ezFolk Forums
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 Posted: Mon May 5th, 2008 08:21 pm
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woodstock
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Hi Allenz,

No, it is not from our text book.  This is from one of the 3 instructional book that I got from my relative.  It maybe in your Chinese instructional book by 趙寒陽.  I was wondering whether it is referencing to 3 notes or something else. It is on the topic of HUA(2) Yin(1).   Oh yes, what do you think of using the vacuum cleaner while you applying rosin on you bow? 

Will

 

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 Posted: Mon May 5th, 2008 08:54 pm
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AllenZ
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Will, nice guess. It is in my 趙寒陽 book for its 滑音 chapter. I think it means when you slide pass three or more keys, its called a  大滑音. (If anyone is 100% sure of this term for sure, please correct me~)

As for the vac,  I don't know, it's a logical method, but I just don't like vacs just like my girlfriend's dog. But after reading your suggestion, I just remembered I had a whole bunch of facemasks from back when I went back to Hong Kong and it was during the whole SARS thing.... If thoses things can keep out SARS, I think Rosin should have no problem.

I bet Sung Wah's staff wear masks like this in the workplace all the time.

Attachment: pocketmonster_pokemon_a20.jpg (Downloaded 83 times)



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 Posted: Mon May 5th, 2008 08:57 pm
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davidmdahl
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woodstock wrote: Hi Allenz,

Do you know what they mean by   in reference to erhu.  I read this in the self taught book.  Thanks.

Will


The translation tools on the web translate it as "three times" or "three of". Does that make sense given the context?

Best wishes,

David

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 Posted: Mon May 5th, 2008 09:05 pm
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AllenZ
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davidmdahl wrote: woodstock wrote: Hi Allenz,

Do you know what they mean by   in reference to erhu.  I read this in the self taught book.  Thanks.

Will


The translation tools on the web translate it as "three times" or "three of". Does that make sense given the context?

Best wishes,

David


Dave,
I'm 100% sure they mean "Three Degrees of..." in this case, but I was just unsure if they meant keys or some other music lingo. Because I learned music thru Japanese 文化譜, its simple but doesn't teach a lot of standard 5 line music stuff.

Babel Fish just doesn't work too good these days.....
http://humanum.arts.cuhk.edu.hk/Lexis/lexi-can/search.php?q=%AB%D7



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 Posted: Mon May 5th, 2008 10:16 pm
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davidmdahl
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I am not in any position to debate translation of Chinese. <g> I used the translator on Google. You are right about Babelfish. At least in this case it was useless.

Best wishes,

David

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 Posted: Tue May 6th, 2008 01:55 am
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dsouthwood
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Liquid Rosin Test

Ingredients: Grumbacher Gum Spirits of Turpentine (8 oz. for $6.69) and a piece of Hill Rosin (light) that I kept even though I’m now using Andrea “Paganini” violin rosin for my erhu and Andrea “David” viola rosin for my zhonghu.

Safety recommendations: dust mask, rubber gloves, fan, and open windows for ventilation.

Rosin powder: I crushed the rosin fairly fine using a ceramic bowl and a spoon. I didn’t worry about getting the rosin ground into smooth, even powder, because I was going to dissolve it in turpentine anyway. I used the bowl I keep my loose change in, in hopes that the rosin would help me hold onto my money. I’ll let you know how that turns out.

Solution: One teaspoon of the powdered rosin in four ounces of turpentine, left overnight to dissolve thoroughly.

First test: Since the bow already had rosin on it, my first test was to simply apply turpentine to the bow using a soft brush, making sure the hair was completely saturated throughout, to see if dissolving the rosin already on the bow would make a difference. After the bow hair dried, I tried it on my erhu. The sound may have been a little  smoother, or that might have just been wishful thinking on my part; at any rate, it was very close to what it had been before. There was one significant difference, though. I used to get a scratching/scraping sound when bowing the A string; It happened when I was bowing slowly, and it came when I was pulling the bow, starting at the frog end. After the turpentine treatment, that noise completely disappeared.

Second test: I brushed on the rosin-turpentine solution, again making sure the hair was completely saturated (it was dripping slightly off the end of the bow). While it was drying, I went to see Iron Man (you can skip this step, but if you do you’ll miss a cool movie). When I returned, the bow hair had dried to a glossy finish, and the hairs were mostly stuck together. I carefully used a pocket comb to separate the hairs and tried the bow on my erhu. Bowing hard and fast produced no visible rosin dust. The scraping noise was still missing, and the sound was quite smooth—subjectively, I would say smoother than when I rosined the bow normally. Also, the amount of rosin is the same on both sides of the hair, so the inner and outer string will be getting the same amount of grab. Because the hairs were well saturated with the solution and I hung it vertically with the frog end up to dry, the liquid rosin flowed down the bow somewhat. The result is that there is less rosin at the frog end, where the bow naturally presses harder against the strings, and more toward the tip of the bow, where there is naturally less pressure because of the physics of the thing. So that would be a good thing.

The third test will be to see how long it takes before I need to rosin the bow again. I’m thinking that this will last quite a bit longer, especially since I saw no rosin dust coming off when I bowed. I’ll let you all know when it feels like I need to add more rosin to the bow.

Dennis
 



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 Posted: Tue May 6th, 2008 02:15 am
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AllenZ
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Dennis,
Thank you for the contribution and very detailed reporting. Seems like you went out of your way to investigate it. Very, very interesting results. Can't wait for the results of your third test.

For the first test, it seems the solution helps in evening out the rosin on the bow to smooth it out alittle. The second test sounds good too, but if you have some kind of empty roll-on applicator bottle of some sort I think you can save a lot of time (and cut down on the mess). Does it take a long time for the solution to dry?



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 Posted: Tue May 6th, 2008 02:48 am
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dsouthwood
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I did have a fan blowing on it, so it dried fairly quickly. I like the applicator idea. It would make the whole thing a little more controlled.

Dennis



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 Posted: Tue May 6th, 2008 03:39 am
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Jeen
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woodstock wrote: Hi Allenz,

Do you know what they mean by   in reference to erhu.  I read this in the self taught book.  Thanks.

Will


Hi Will

The word itself means 3rd interval.

:)



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 Posted: Tue May 6th, 2008 04:24 am
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Clyde
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God Bless

Last edited on Thu Jul 10th, 2008 06:29 am by Clyde

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 Posted: Wed May 14th, 2008 07:47 pm
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dsouthwood
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Regarding my liquid rosin experiment, I would say that there is good news and bad news. The good news is that it seems the application of liquid rosin is going to be very long lasting. The bad news is that I really don't like the sound that much. Yes, it's smoother, but it also seems to be more shrill. I also don't get the sensation of the bow grabbing the string the way I did with the regular rub-on application of rosin. Fortunately, I used an old bow for the experiment, and I'll change back to the newer one I was using before.

My favorite rosining technique before was to rub on a good amount of rosin and then blow the excess off using a can of compressed air that's sold for blowing the dust out of computers. That leaves a nice, even coating of rosin on the bow; it still grabs nicely, and the sound is smooth and even. That's what I'll be going back to.

Dennis



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 Posted: Wed May 14th, 2008 11:57 pm
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AllenZ
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Thanks for the report Dennis, very interesting results. The next time I get supplies from Japan I'll buy a small bottle and see how it compares.

Oh yeah I also would need an extra bow from Sung Wah or something, just in case the results it doesn't trust out really good.



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 Posted: Fri Jun 13th, 2008 02:28 pm
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woodstock
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Allenz,

I am in the NY/NJ area and I still have 4 more lessons to go.  I watch one of the Chinese channels and saw an interview with Ma Xiao Hui.   She is having a concert in Carnegie Hall 6/18 at 8 PM.  I am little disappointed because the concert is mixed in with other types of music.   I would be interested if it were strictly Chinese music.  But this is just FYI for you and those who are interested and not aware of the up coming concert.

Will

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 Posted: Sat Jun 14th, 2008 06:40 am
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AllenZ
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Hey Will.
Thanks for the info. How's Sifu Cheung treating you? I heard you doing weekday lessons?

Last edited on Sun Jun 15th, 2008 01:02 am by AllenZ



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 Posted: Mon Aug 25th, 2008 09:12 pm
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mrjackgreen
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dsouthwood wrote: Liquid Rosin Test

Ingredients: Grumbacher Gum Spirits of Turpentine (8 oz. for $6.69) and a piece of Hill Rosin (light) that I kept even though I’m now using Andrea “Paganini” violin rosin for my erhu and Andrea “David” viola rosin for my zhonghu.

Safety recommendations: dust mask, rubber gloves, fan, and open windows for ventilation.

Rosin powder: I crushed the rosin fairly fine using a ceramic bowl and a spoon. I didn’t worry about getting the rosin ground into smooth, even powder, because I was going to dissolve it in turpentine anyway. I used the bowl I keep my loose change in, in hopes that the rosin would help me hold onto my money. I’ll let you know how that turns out.

Solution: One teaspoon of the powdered rosin in four ounces of turpentine, left overnight to dissolve thoroughly.

First test: Since the bow already had rosin on it, my first test was to simply apply turpentine to the bow using a soft brush, making sure the hair was completely saturated throughout, to see if dissolving the rosin already on the bow would make a difference. After the bow hair dried, I tried it on my erhu. The sound may have been a little  smoother, or that might have just been wishful thinking on my part; at any rate, it was very close to what it had been before. There was one significant difference, though. I used to get a scratching/scraping sound when bowing the A string; It happened when I was bowing slowly, and it came when I was pulling the bow, starting at the frog end. After the turpentine treatment, that noise completely disappeared.

Second test: I brushed on the rosin-turpentine solution, again making sure the hair was completely saturated (it was dripping slightly off the end of the bow). While it was drying, I went to see Iron Man (you can skip this step, but if you do you’ll miss a cool movie). When I returned, the bow hair had dried to a glossy finish, and the hairs were mostly stuck together. I carefully used a pocket comb to separate the hairs and tried the bow on my erhu. Bowing hard and fast produced no visible rosin dust. The scraping noise was still missing, and the sound was quite smooth—subjectively, I would say smoother than when I rosined the bow normally. Also, the amount of rosin is the same on both sides of the hair, so the inner and outer string will be getting the same amount of grab. Because the hairs were well saturated with the solution and I hung it vertically with the frog end up to dry, the liquid rosin flowed down the bow somewhat. The result is that there is less rosin at the frog end, where the bow naturally presses harder against the strings, and more toward the tip of the bow, where there is naturally less pressure because of the physics of the thing. So that would be a good thing.

The third test will be to see how long it takes before I need to rosin the bow again. I’m thinking that this will last quite a bit longer, especially since I saw no rosin dust coming off when I bowed. I’ll let you all know when it feels like I need to add more rosin to the bow.

Dennis
 

Wouldn't organic solvent damage the bow hair?

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 Posted: Mon Aug 25th, 2008 10:40 pm
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AllenZ
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Umnmmm... Dennis was having fairly good results with this I imagine that it didn't really. But your point is good too.

On the side note, I recently found a think that Violinist use called Peg Drops or Peg Compound, it's basically liquid rosin too. I checked around and found its patent for the Peg Drops and its the basically the exact formula Dennis was using.

It's pretty useful for loose Tuning Pegs that slip or creak. I used it a few times and had some good results. Of course, there's no worry about damaging the wood since its just rosin when it dries.



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To hell with circumstances. I create opportunities.

"You're lucky Buddhism teaches freedom from desire, because I've got the desire to kick your ass!" - Richard Gere

Where I'm from? A little town called None Of Your Goddamn Business.
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 Posted: Tue Aug 26th, 2008 07:27 am
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Peg drops can help the pegs get a better grip, but I find that rosin dust on the pegs does not let them turn smoothly. It is very frustrating to tune when a peg jumps or stutters as I am trying to turn it to the right spot. Rosin is best used only on the bow.

Best wishes,

David

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 Posted: Tue Aug 26th, 2008 01:20 pm
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Den
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David.....   what about using powdered chalk on the tuning pegs,   I read about that somewhere along the line.   I think it was mentioned for getting a better grip on pegs that tend to lose their tuning.    I am often quite surprised that my strings most always hold their tune even after an extended time period ,  I suppose that will change as they age or wear down some.

Den

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 Posted: Tue Aug 26th, 2008 11:09 pm
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AllenZ
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davidmdahl wrote: Peg drops can help the pegs get a better grip, but I find that rosin dust on the pegs does not let them turn smoothly. It is very frustrating to tune when a peg jumps or stutters as I am trying to turn it to the right spot. Rosin is best used only on the bow.

Best wishes,

David


Dave,
Which brand are you using? I have not run into this situation with my brand so far, maybe I should recommend my's if you're still interested in using it.

I also have a bottle of finely grinded rosin powder I brought from Ebay and its so fine that it don't get much of that problem.

Attachment: Rosin.Powder.gif (Downloaded 20 times)

Last edited on Tue Aug 26th, 2008 11:18 pm by AllenZ



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To hell with circumstances. I create opportunities.

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 Posted: Sat Sep 6th, 2008 04:12 pm
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Den
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allenz

I might find the answer going back through the posts,  this might be quicker.......

with the finely ground rosin powder,  do you put the powder on a cloth and apply it to the strings,   or do you sprinkle it directly on the strings and then smooth it along??    or do you do something else with it ...   and is the bow attached or detached at the time of rosining.

Den

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