---------------------- multipart/alternative attachment You can practice tuning one of the unisons and leaving the others to tune back to after you've done your thing. Andrew At 03:59 PM 9/29/2004 -0400, you wrote: >I would not suggest practicing your tuning on someone elses piano& >especially if you want to stay friends with them. > > > >R.Cromwell > >Cromwell's Piano Service Detroit,MI > > > >---------- >From: pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org] On >Behalf Of Matthew Todd >Sent: Wednesday, September 29, 2004 2:13 PM >To: Pianotech >Subject: Re: Octave Tuning > > > >Thanks for the replies. I am practicing my tuning on a 1913 Hinze >upright. Is that doing me more harm than good here? I think it is hard >to hear lots of stuff on that piano, but then again, I am a beginner, so I >don't know if it's more the piano or more me not having trained ears >yet. I know lots of families with much newer pianos, should I try to hook >up with one of them and maybe work it out with them to practice my tuning >on it? > > > >Matthew > >BobDavis88@aol.com wrote: > >Matthew writes: > >When I tune the temperament octave (A3-A4), it needs to be a 4:2 octave, >correct? > >No. Read the many replies which said that it should usually be wider than >that. > >And one way to test this octave is to play the A two octaves above the >lower note as the test key, to hear the partials in the octave, am I right? > >Not exactly, but read Don Rose's comments on ghosting. > > If the octave you are testing has no beat whatsoever, you have a > perfect temperament octave, is this true? > >No. There is no such thing as a beatless octave. An octave which is not >beating at one level, such as 4:2, will be beating at all other coincident >partials, such as 2:1, 6:3, 8:4. The higher the beatless coincident is in >the chain, the wider the octave. A good compromise octave is usually >pretty quiet, though, > > > >Matthew, > > > >If you have kept this trail of posts on octave tuning, please go back and >re-read it, and the links to which you were referred, including the ones >to the AccuTuner manual Appendices F and H. People are happy to spend time >helping you, but you've got to do your homework and read the replies. At >the risk of repetition, I include, directly below, a copy of my post from >last week on this subject: > >Bob Davis > >------------- > >Matthew's original question was how to tune a 4:2 octave. Several people, >myself included, sent the tests, aural and visual. Whether that [meaning >4:2] is appropriate for the temperament octave on a particular piano is a >second question. Tuning so that "the 10th is just noticeably faster than >the third" might produce a good width of octave, but it is NOT a 4:2. >[It's wider] > > > >A clean 4:2 octave IS wide at 2:1, and narrow at 6:3. Most aural tuners >naturally gravitate towards a temperament octave that is very slightly >wide of 4:2 ("the 10th is just noticeably faster than the third"), which >will be substantially wide of 2:1 and a tiny narrow of 6:3. This gives an >octave that is pretty clean-sounding, and produces fifths which are pretty >clean and fourths that aren't too trashy. Any octave size can be divided >into 12 equal half steps. A true 4:2 octave will produce cleaner fourths >and more movement in the fifths, and on most pianos will be unnecessarily >narow. However, on some pianos with high inharmonicity, a wide temperament >octave added to a clean octave below, will produce a double octave that is >too noisy. It's a balancing act. > > >Do you Yahoo!? ><http://vote.yahoo.com>vote.yahoo.com - Register online to vote today! ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/39/2f/5b/3f/attachment.htm ---------------------- multipart/alternative attachment--
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