>From my low memory I recall that the tone is produced by differences between 2 partials of 2 upper notes) in fact a beat that is producing the desired frequency. I believe the interval is a fifth, or a twelve (?), Just don't imagine how to produce the tone without having the others sounding too strong. Very interesting. best regards. Isaac O Isaac OLEG Entretien et reparation de pianos. PianoTech 17 rue de Choisy 94400 VITRY sur SEINE FRANCE tel : 033 01 47 18 06 98 fax : 033 01 47 18 06 90 cell: 06 60 42 58 77 > -----Message d'origine----- > De : pianotech-bounces@ptg.org > [mailto:pianotech-bounces@ptg.org]De la > part de Richard Brekne > Envoye : vendredi 16 mai 2003 00:01 > A : Pianotech > Objet : Re: Ya don need a Bosendorfer? > > > Hi Ed. > > I believe the phenomena is called difference tones. Strange > thing really. You > wouldnt think it really works. > > RicB > > > A440A@aol.com wrote: > > > Greetings, > > Here is a new one on me, it comes from the piano-L list: > > > > >>Jonathan Gonder performed the Bach-Busoni Chaconne in d > > minor. In one of the passages, near the end of the > piece, the very lowest > > notes of the piano were heard fortissimo in a descending > line which went > > beyond the lowest A of the piano to a G. > > > > Jon said how this tone was produced, I can't remember what he said > > other than that he struck two notes, a fourth apart, and > that in doing so, > > the low G was produced. He said that organists do this > to compensate when > > they do not have pipes which go low enough. > > > > Can anyone explain this to me? << > > > > Ideas, anyone? > > > > Ed Foote RPT > > www.uk-piano.org/edfoote/ > > www.uk-piano.org/edfoote/well_tempered_piano.html > > <A > HREF="http://artists.mp3s.com/artists/399/six_degrees_of_ton > ality.html"> > > MP3.com: Six Degrees of Tonality</A> > > _______________________________________________ > > pianotech list info: https://www.moypiano.com/resources/#archives > > -- > Richard Brekne > RPT, N.P.T.F. > UiB, Bergen, Norway > mailto:rbrekne@broadpark.no > http://home.broadpark.no/~rbrekne/ricmain.html > http://www.hf.uib.no/grieg/personer/cv_RB.html > > > _______________________________________________ > pianotech list info: https://www.moypiano.com/resources/#archives >
This PTG archive page provided courtesy of Moy Piano Service, LLC