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Re: ot: old horns metal acoustics


On Jan 1, 2007, at 11:28 PM, samba - wrote:

>  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.


I seem to remember some reportage about 3 or 4 years ago about  
finding that treating metal instruments with super-cooling using  
liquid nitrogen improved the tone quality. Might have been an NPR  
story. I did a quick Google search and nothing jumped out at me on  
the first page. Maybe it turned out to be too expensive a process for  
results that were too small to justify? Might improve uniformity.

regards

BobC


http://www.flickr.com/photos/41969054@N00/sets/72157594240725240
http://tinyurl.com/cr25j
http://www.youtube.com/watch?v=sn--iF6a4Xo