Uh, no. Fourths are wide and fifths are narrow. If the C3-F3 fourth is too narrow it will be more perfect and then the F3-C4 fifth will be too wide and also more perfect. David Love www.davidlovepianos.com From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf Of John Formsma Sent: Tuesday, February 01, 2011 5:21 PM To: pianotech at ptg.org Subject: Re: [pianotech] [Pianotek] the big discussion On Tue, Feb 1, 2011 at 2:15 PM, John Ross <jrpiano at eastlink.ca> wrote: When I tried the aural portion, I failed. They told me my 4ths and 5ths were too pure. Now if I were a customer wanting a tuning, would I choose an ETD tuner with a 95.7% average for the exam, or an aural person, who for arguments sake passed with an 80%. Just throwing this out, and I know it is late in the thread. John Ross Just FYI, you can't have both pure 4ths and pure 5ths in an equal temperament. They are mutually exclusive. With purer 4ths, the 5ths are narrower (beat faster). With purer 5ths, the 4ths are wider (beat faster). If you had some 5ths and some 4ths pure .... well, that would not be what would pass the test. It could be any number of different sounds, depending on what was pure ... and where. -- JF -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech.php/attachments/20110201/85580fc9/attachment.htm>
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