pitchlock

[Andrew and Rebeca Anderson]

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David,
At the National in K.C. use on bass strings was demonstrated at the 
agraffe for wound strings.  On the plain strings the coupler was 
installed near middle of the speaking length and then slid up towards 
the bridge, but kept short of it.  Also these were used on the duplex 
portion of the capo to control zings and alternatively to tune the duplex.

Andrew

At 07:30 PM 10/4/2005, you wrote:


>Are we suppose to put the pitchlock clamps near the bridge 
>always?   On the Pleyel I was writing about, I just put them up near 
>the capo bar in the bass section.   Would it be better near the 
>bridge?  Next time I'm there I can make the switch if necessary.
>
>David I.
>
>
>
>
>
>----------
>Original message
>From: Tvak@aol.com
>To: pianotech@ptg.org
>Received: 10/3/2005 6:35:36 AM
>Subject: Re: pitchlock
>
>
>In a message dated 10/3/05 10:22:29 AM, pcpoulso@pacbell.net writes:
>
>
>>there was a noticable loss in tone and volume. This was on a treble 
>>note. Have you noticed any such effect?
>
>
>The Pitchlock guy, forgive me but I forget his name, came to our 
>chapter meeting last year and gave us a demonstration.  He had put a 
>Pitchlock clamp on one key and asked us to just listen and tell him 
>which one had the clamp on.  He played four different notes, 
>repeatedly, loudly and then softly, and we then voted on which note 
>had the clamp on.  There were about 40 techs there that night, and 
>each note got about ten votes.
>
>If a roomful of technicians can't tell which note had the Pitchlock 
>clamp on it, no consumer is going to be able to hear any difference.
>
>I have installed one set on a horrible little console owned by a 
>professional bass player.  There is no question that the piano 
>sounds cleaner than it did with some of the false beating being 
>masked by the Pitchlock clamps.  So I waited about two months and 
>then called him to ask how he felt about his piano now; did he 
>notice any change in tone color, or sustain, or any other 
>negative?  He responded that the piano still seemed to be in tune, 
>and sounded great.
>
> >From what I understand, if you position the clamps too closely to 
> the bridge you can get a loss of tone color and sustain, so just be 
> careful in positioning them and in my opinion, you should have no 
> problems related to lack of sustain or volume, or poor tone.
>
>Tom Sivak
>Chicago


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