Piano Rims (rambling post)

[Phillip L Ford]

On Thu, 3 Jan 2002 18:18:58   
 JIMRPT wrote:
>
> I bet a regular acoustic guitar would have
>pretty good sustain if you took off the bridge.  Of course, you wouldn't be
>able to hear it.">>
>
> I'm not sure what you mean by this Electric guitars do have a bridge...don't 
>they. The bridge is where most of the tremolo attachments are hooked up to.

That's not really what we think of as a bridge is it?  More like a hitch or tail
piece for ending the string.  The string vibrations are not coupled to the
guitar body as in an acoustic guitar.  They are picked up by a 'pickup' and
amplified.
 
>As to the acoustic part I am not sure I follow your reasoning... a piano 
>would not have very good volume if you didn't install the bridges 
>either.......your point???
>

My point is that the solid body guitar does not have better sustain than a
hollow body acoustic guitar because it has a solid body. or because it is
more rigid than an acoustic guitar.  It is because the string is not coupled
to the body of the guitar.


> To comment on the tone bar anaology......it ain't one because the tone bar 
>is in and of itself the producer of tone and projector of tone whereas the 
>piano sound board 
>does not produce the sound it merely projects what is produced by a separate 
>mechanism, i.e. the string.
>Jim Bryant (FL)
>

I don't agree.  The tone bar is excited by a mallet or whatever.  The soundboard
is excited by vibrations from the bridge (in what form I won't get into - I don't
want to get in the middle of that discussion).  At that point I don't see much
difference between the two.

Phil F


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