<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta content="text/html;charset=ISO-8859-1" http-equiv="Content-Type"> <title></title> </head> <body bgcolor="#ffffff" text="#000000"> Hi Keith I dont get it either. This one came out of the blue.  The coupled motion of strings, and the related mechanics to the interaction between the bridge and soundboard assembly and the vibrating string are really well documented and the experimental material that backs them up done by a series of music acousticians over a quite long period of time.  Its got nothing to do with the also well documented short comings of ETD's... which are no less then if you know what you are doing with them you can arrive at a very high quality tuning with their aid. If Richard has some kind of topical data, documentation, rationale etc to back up any of this I would like to of course see it.  But I rather doubt it. Cheers RicB <blockquote> I don't get some of this. I see nothing disproved. The coupled motion thing seems to be an issue of semantics as well as the para inharmonicity. I also disagree with the statement that tuning devices have shortcomings, They are just measureing devices and if there is a sound there, it measures it. How the data is interperted and used by the operator is where the shortcomings are. You know, a man can be a 5 time divorcee loser or a man who is not afraid to make a committment. Depends on how you word it. Keith Roberts</blockquote> </body> </html>