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ot: old horns metal acoustics




   Following are  comments on the discussion of woodwinds changing over 
time,from my friend Steven Rosenthal,who is an instrument 
builder/inventor,and piano tuner.He also makes giant musical 
sculptures,plays insane oboe,and was a member w/ Darell DeVore ,of the 
original Future Primitive ensemble.
  "Looks like the familiar tendency to get caught up in minutia and a  
lack 
of precise definitions. One being whether "aging" refers to  metallurgical 
flaws (Ostwald ripening), or a global change in the  material (Jake Ruby 
fermentation?). I doubt the composition of the  brass is going to change, 
but if the instrument is not well made the  lack of uniformity, in wall 
stiffness for example, could lead to  stability problems. In general 
errors 
tend to accumulate in  instrument construction and their effects thus 
become 
compounded, and  interrelated, so it can be hard to diagnose symptoms.
All things being equal (make and model), reeds, mouthpieces, the  players' 
disposition, etc. have much larger effects on the  characteristics of an 
instrument.
The extreme instruments made by Herr Eppelsheim are bound to be  fraught 
with problems owing to the large amount of of surface area in  the low 
instruments and the super high tolerances required for a  piccolo sax. He 
certainly to want to have as many constants as  possible such as uniform 
materials, even still he must be constantly  flirting with the impossible 
to 
make good musical instrument. He must  be a saint or a lunatic if not 
both."

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