<HTML><FONT FACE=arial,helvetica><FONT SIZE=2>In a message dated 2/11/01 11:06:55 AM Central Standard Time,
<BR>pianotoo@imap2.asu.edu (Jim Coleman, Sr.) writes:
<BR>
<BR>
<BR><BLOCKQUOTE TYPE=CITE style="BORDER-LEFT: #0000ff 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px">I continue to trip over his use of
<BR>the word beatless, but now I'm thinking that there may be a sense in
<BR>which he does hear something beatless. I would like to get the HT people
<BR>involved in this discussion at this point, because there seems to be
<BR>something akin to this in the equal-beating scheme of historical tunings
<BR>which gives the impression of no beats when actually there are beats.
<BR>
<BR>I have heard the HT people say that when there are proportional beatings
<BR>in a temperament chord, the beatings counteract one another. What say
<BR>you, Ed Foote, Bill Bremmer, Paul Bailey, Owen Jorgensen? Could Virgil be
<BR>saying something which you all recognize as one of the benefits of equal
<BR>beating HT's? Let's try to pursue this without the personalities issues
<BR>coming up.</BLOCKQUOTE>
<BR>
<BR>I'm lucky I caught this post because I haven't had much time for the computer
<BR>lately and even today, I am taking it in to get a major upgrade. I don't
<BR>know when I'll be back on line again.
<BR>
<BR>I learned a lot about tuning from Jim Coleman, George Defebaugh, Virgil
<BR>Smith, Steve Fairchild, Owen Jorgensen, Fred Tremper and many others,
<BR>including Members of my own Chapter. I tuned for about 22 years strictly by
<BR>ear before I ever started using an Electronic Tuning Device (ETD), in my
<BR>case, the Sanderson Accu-Tuner II (SAT). Getting to understand how to use
<BR>the SAT and administer the PTG RPT Tuning Exam also taught me an immeasurable
<BR>amount.
<BR>
<BR>From the very beginning, I had heard that some people listen to individual
<BR>partials when they tune various intervals. I always had a hard time
<BR>understanding this because I never thought I did. I first learned about what
<BR>I call the Rapidly Beating Intervals (3rds, 6ths, 10ths, 17ths, etc.) from
<BR>George Defebaugh. Since these were new to me at the time, it was very
<BR>difficult for me to discern fine gradations in beat speeds but I seemed to
<BR>catch on fairly quickly once I knew what to listen for.
<BR>
<BR>Today, when I tune an octave or unison aurally, I'd have to say that I still
<BR>hear pretty much what Virgil does, the whole sound. I often can hear one or
<BR>more of the upper partials, usually the 3rd partial if I focus on that but it
<BR>doesn't have anything to do with how I tune. To me, the entire process of
<BR>tuning is one of controlling beats. Indeed, there are times when an interval
<BR>should be beatless, namely the unison but in all Well-Tempered Tunings,
<BR>including the Equal Beating Victorian Temperament (EBVT) that I designed and
<BR>use most often, there are some pure (beatless) 5ths.
<BR>
<BR>I have come to understand that neither an octave nor a 5th (and probably a
<BR>3rd for that matter) can never be truly beatless. All anyone can do is make
<BR>one set of coincident partials beatless. However, from a practical point of
<BR>view, there is nothing to prevent any interval from being *perceived* as
<BR>beatless. I usually do play with this perception factor by pushing things as
<BR>far as they can go until a beat can be heard but backing off just short of
<BR>the perceptible beat. Thus, I often tune an interval that is supposed to be
<BR>beatless nominally with a very slow beat that helps my scheme, as a whole,
<BR>work.
<BR>
<BR>I used to worry that I could not perceive the individual partials of an
<BR>interval I was tuning until I realized that if I could hear a beat, then I
<BR>*must* be hearing the partials. So, I believe that what Virgil hears with
<BR>what he calls the "whole" sound is simply the blend of partials. If an
<BR>interval such as an octave sounds beatless, it simply means that a certain
<BR>blend of partials has been achieved. There may, in fact, be no two partials
<BR>perfectly matched but the beat which occurs between a lower set may be
<BR>canceled out by the beats which occur in a higher set. He finds that pure
<BR>sound simply by searching for it.
<BR>
<BR>There most certainly is a canceling out effect when two sets of beats are
<BR>exactly the same. When tuning a unison, there is a sudden drop in perceived
<BR>volume when that unison becomes absolutely pure. A piano tuned with poor
<BR>unisons sounds "louder". Until very recently, I have never heard of anyone
<BR>advocating anything but pure unisons. I still believe firmly in trying to
<BR>get the purest unisons possible. If there is a desire to get something else
<BR>from the piano by manipulating the tuning, it is temperament and octaves that
<BR>are best manipulated. The best unisons possible will support whatever idea
<BR>there is to obtain a different "color" from the piano..
<BR>
<BR>When there are false beats which cannot be suppressed, it is usually possible
<BR>to make them much quieter and stiller sounding by using the canceling out
<BR>effect of Equal Beating (EB). Simply by careful unison tuning, the noisy
<BR>false beat may be quieted by producing an equal but opposite beat which
<BR>quiets the unison considerably.
<BR>
<BR>The canceling out effect is an important part of the EBVT. It allows me to
<BR>make the triads at the top of the cycle of 5ths be perceived as much purer
<BR>than they really are. My C4-E4 3rd, for example, beats at 6 per second but
<BR>when played as part of a larger chord, the chord as a whole has a slow,
<BR>lilting sound, nearly identical to what is heard in the very restrictive
<BR>temperaments like 1/4 or 1/5 Comma Meantone or the Kirnburger Well Tempered
<BR>Tuning. In essence, its like a stolen base, I've got my "pure" sounding
<BR>chord without having to pay the price for it in harshness at the bottom of
<BR>the cycle of 5ths.
<BR>
<BR>I hope this sheds some light on the subject.
<BR>
<BR>Sincerely,
<BR>
<BR>
<BR>
<BR>Bill Bremmer RPT
<BR>Madison, Wisconsin</FONT></HTML>