"That will also help to prevent the inversion of the soundboard you mentioned." What's that all about? Sounds like something beyond a turnbuckle. Terry Farrell ----- Original Message ----- From: "Isaac OLEG" <oleg-i@wanadoo.fr> To: "Pianotech" <pianotech@ptg.org> Sent: Tuesday, July 08, 2003 9:41 PM Subject: RE: Treble resonator > Resonnator does not tell it indeed - here are instructions from Bob > Grijalva : > > 2. Do not pre-tension the device. Your ability to decide how much to > tighten it will depend upon listening to the piano with the device in > a neutral position first. So, you must string the piano first. That > will also help to prevent the inversion of the soundboard you > mentioned. > > Robert Grijalva > Asst. Professor and Director, Piano Technology > University of Michigan School of Music > > Isaac OLEG
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