<!doctype html public "-//w3c//dtd html 4.0 transitional//en"> <html> <body bgcolor="#FFFFFF"> Well, this is kinda a mouthfull. I am sure you are going to get a lot of answers to this and I will leave the meat of this too the others. I would encourage you to read the Five Lectures on Piano Acoustics, edited by the eminent Anders Askenfelt. It is available on the net for direct access now and will provide you with as much piano science as you can digest for starters. I cant find my link to that web page at the moment but will post it either later on tonite or in the course of the day tommorrow. Another great article to read is Inharmonicity of <a href="http://www.afn.org/~afn49304/young.html">Plain Wire Piano Strings</a>   printed in the Journal of the Acoustical Society of America. Written by Robert Young in 1952. Grin... these oughta keep you busy for a while... Djalma Carvalho wrote: <blockquote TYPE=CITE><style></style> Hello everybody! I've been pleased to join this mailing list for technical discussions.I work as a piano technician in São Paulo, Brazil and I have some questions concerning the phenomenon of inharmonicity.My doubt is:  "why" - scientifically speaking - low-tension scales offer higher inharmonicity than high-tension scales? And how does stiffness of wire interfere on this fact? I was led to believe that the higher the tension, the higher the inharmonicity due to the stiffness of wire in a high tension string, but I was advised it is not true.Could you please clarify this fact for me?  I'll be really grateful for replyings. Regards,Djalma Carvalho - Brazil</blockquote> -- Richard Brekne RPT, N.P.T.F. Bergen, Norway <A HREF="mailto:Richard.Brekne@grieg.uib.no">mailto:Richard.Brekne@grieg.uib.no</A>   </body> </html>