I had found the variance of the other reeds for tremolo effect, seems to be about 15cents. John M. Ross Windsor, Nova Scotia. jrpiano@win.eastlink.ca ----- Original Message ----- From: "sid blum" <sid@sover.net> To: <pianotech@ptg.org> Sent: Monday, February 18, 2002 11:24 AM Subject: Re: Accordion Tuning/not funny > Thanks for the reply, Carl. > > Sorry for bad choice of words in the subject line, didn't mean to offend. > > It is my own accordion that needs tuning, and I have several clunkers also > that I can practice on. One thing I have been trying to figure out is how > wide a spread there should be between the three unison reed sets. Assuming > one reed at A 440, one at A 441 and one at A 439, would you be shooting for > clean octaves within each set of reeds so that the tremolo an octave above > beats at twice the speed? > > thanks, > > sid > ----- Original Message ----- > From: "Carl Teplitski" <koko99@mb.sympatico.ca> > To: <pianotech@ptg.org> > Sent: Friday, February 15, 2002 12:54 PM > Subject: Re: Comic Relief...... /Accordion Tuning/not funny > > > > Have tuned hundreds of accordions. If you have never seen one done, I > would > > make sure your customer is prepared to possibly have his acc. ruined, or > at > > least away for quite a long time. Apart from the fact that you must learn > how > > to file each reed in and out of the reed well to make it go sharp or > flatter, > > you > > must be very careful not to ruin the leathers associated with each one. > They > > have a large effect on reed pitch and reed response. My suggestion would > be > > that if you have never seen one done, don't !!! It is much more difficult > than > > a > > musician tuning his own piano if he has no experience in doing same. One > of > > the most difficult things to do is, tune the inside reed tongue. This reed > > tongue > > plays when the bellows are pulled out. The reed which can be seen, plays > when > > you push the bellows to closed position. You must also not touch the reed > > tongue > > with your fingers as they will rust. I have seen an example when someone > who > > tried to > > do something to their own acc., and handled the reed blocks with their > hands > > leave > > their finger prints on each reed in rust. This of course changes the > weight of > > the reed > > putting it out of tune, as when you file a reed , you are changing it's > > vibrating speed > > by making it heavier or lighter. Nuff said ??? > > You didn't mention whether this was a decent instrument. Or if it is > yours? > > If you decide to go ahead, you must acquire some fine files. ( jewelers ) > > An ETD would be nice. Tune centre octave with ETD, and tune rest aurally. > > Write me off list if you are serious about attempting this, because I > would > > really try to dissuade you . > > > > Carl > > > > > > > > > > > > sid blum wrote: > > > > > Pianotech Listers, > > > > > > I'm thinking this question was best addressed off-list, but this group > is > > > such an amazing resource, I couldn't resist asking for your help. > > > > > > I am about to make my first attempt at accordion tuning. If anyone has > any > > > wisdom they are interested in sharing, or sources for information, I > would > > > be most grateful. > > > > > > thanks, > > > > > > sid blum > > > sid@sover.net > > > >
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