Elian and list. After checking our records, the serial number of the M1 did not come up. It appears that this piano was either not made for export, or was intended for a country other than the US. Elian, if you are from another country, that might explain this! In any event, it is not unusual for pianos intended for one market, to exhibit instability when taken to another. It would be worth investigating if there are any structural components, glue joints, & the like, which could be failing as a result of excessive low humidity from air conditioning or extended periods of dryness. I am unaware of any conditions other than humidity, which can make the pitch rise. It sounds like this piano is reacting to humidity changes. Steve Pearson Yamaha >>> Frank Cahill <fcahill@erols.com> 08/30/98 05:52PM >>> Roger Jolly wrote: > > Hi Frank, > All curent producton grands, any good Yamaha dealer should be > able to show a sample bolt and sleeve, the system is ALMOST self explainatory. > Regards Roger > > At 09:03 PM 29/08/98 -0400, you wrote: > >BopPiano@aol.com wrote: > >> > >> First, I would look for drafts (is there an air conditioner or other > >> situation causing fluctuation) Next, are the plate bolts adequately > tight ? > >> (note-don't tighten perimeter bolts on models with with plate suspension > >> similarb to Baldwin Accujust) > > > > > >Hey! I didn't know about the plate suspension in Yamahas!!!! Whcih > >models, please. > >-- > > > >Frank Cahill > >Associate Member > >Northern Va > > > Roger Jolly > Baldwin Yamaha Piano Centre > Saskatoon and Regina > Saskatchewan, Canada. > 306-665-0213 > Fax 652-0505 Thank you. Boy, I can't beleive I missed this. I assume that like the Baldwin accu-hitch plates, you can damage the plate if you tighten those rim bolts. -- Frank Cahill Associate Member Northern Va
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