rehearsal room to theatre stage

[Wimblees@aol.com]

---------------------- multipart/alternative attachment
Tom

The piano is the same, but the environment is different. That can have a lot 
of effect on the piano. For one thing, there is more air around the piano, 
and maybe even more reverberation, which will cause echoes of the sound 
coming back at you. That might be a reason you are hearing false beats. Also, 
check to make sure there is no fan up in the ceiling. that will also cause 
"true false beats."

Perhaps the poor rendering was a problem before, but you might not have 
noticed it, because you didn't have to change the tuning as much. With the 
piano being on stage, it will go out of tune more, so you are changing the 
strings more. If you can't seem to get the string to stay, try releasing the 
tension on one end of the string, and pulling it up on the other end. That 
gets the notches away from the pressure points. 

As far as the broken string, that might be purely coincidental. 

Wim 

In a message dated 3/23/03 1:53:07 PM !!!First Boot!!!, Tvak@aol.com writes:

> Piano in question: Yamaha P2.  This piano has been in the rehearsal room at 
> a 
> local theater for 15 years and I've been tuning it for about 5 years.  This 
> 
> past week it was moved down to the theater stage for a production where it 
> will be used as the performance piano in the onstage band.  
> 
> I am shocked at how much this has changed the piano.  Suddenly the strings 
> don't render easily; in fact, one broke, not at the becket but at the 
> pressure bar.  My tuning efforts yesterday were very difficult as the 
> string 
> would stay, stay, stay, and then with one tiny movement of the pin, shoot 
> way 
> sharp, past the target.   
> 
> In addition, the tone is strange on some strings.  D5, D#5, and E5 for 
> instance, sound as if there are two sizes of strings on the same unison.  
> There is a metallic-ness to the tone and the unisons don't sound 
> pure---none 
> of the strings in these unisons have any false beats, but together they 
> sound...well...funky.  This was certainly not apparent in the rehearsal 
> room.
> 
> In addition, true false beats have also appeared throughout octaves 6 and 
> 7.  
> (Is that an oxymoron: "true false" beats?)
> 
> None of this was the case when the piano was in the rehearsal room.  The 
> humidity is higher in the theater; I measured it at 47%.  (I believe the 
> humidity in the rehearsal room was closer to 30%.)  I'm sure that the 
> temperature on stage varies greatly, from performance-hot, to the 65 
> degrees 
> that it was when I tuned it yesterday.   
> 
> So, today, I'll go in and CLP the strings at the pressure bar, seat the 
> strings to the bridge in the treble, and re-tune.
> 
> I'm sure that the humidity must be the culprit behind the changes I've 
> seen, 
> but why/how would it change the timbre on those notes?  Why the difficulty 
> rendering the strings?  (Rust couldn't form in 47% humidity in one 
> week...could it?)
> 
> Tom S
> 


---------------------- multipart/alternative attachment
An HTML attachment was scrubbed...
URL: https://www.moypiano.com/ptg/pianotech.php/attachments/b3/84/00/87/attachment.htm

---------------------- multipart/alternative attachment--