[pianotech] Do fourths beat faster

Brian Wilson pianocare2 at bigpond.com
Thu Feb 12 02:34:29 PST 2009


Hello List

I thought we "called a ceasefire" .

Question 1. There have been several "notes" from the original tuning course
from the Sydney Conservatorium of Music Tuning Course. The course commenced
around 1973 with the original lecturer being Mr Yogi Suzuki from Yamaha
Japan. (I am not 100% on all these details, I was born 1964) After Mr
Suzuki, Australian instructors tutored the course. First Wayne Stuart (after
1 year in Yamaha Japan, and then in factories around Europe) There have been
other lecturers, two whom I can confirm as Ara Vartoukian and Trevor
Foulcher. (Ron Overs could provide more info)  I think the first books were
from Japan,. My first book was co authored by Trevor Foulcher. Can't
remember the other writer. I started my apprenticeship late 1984, and by
then the Sydney course had closed, and another course started at "Preston
College" in Melbourne, first lectured by Wayne Stuart. I have lost the book
from Foulcher, however Wayne Stuart published a book "Piano Technology - An
Introduction" published 1993. To be honest, it is just all the notes from
the Sydney course condensed into one book. Don't tell Wayne Stuart
this..couldn't put up with him !!

I have another book published by Yamaha Japan. I let a colleague borrow it
approx 5 years ago, and haven't seen it since. It is nearly word for word
with Stuart. BTW I have a copy of "The PTG Tuning Examination : A Source
Book" published 1993. 

Best description of my book : very condensed versions of your PTG Book.
Simple facts, however the notes are not really that help for "self tuition".
That is also why the tuning exams at these colleges were both aural and by
electronic measurement followed by writing these measurements on to a sheet,
then on graph paper. After learning these processes, we all found out that
the beat rates supplied by Yamaha were "perfect" for Yamaha pianos, and then
by taking advice from these rates we could apply them to other pianos.
Fortunately, I was tuning other brands, so the process was a little easier
than colleagues who attended the course, and found the change to other
pianos difficult. 

Question 2 :  Difficult question, as I just do what I do, just the same as
you. I will read the PTG book to remind myself of your terminology. But
believe me, we probably do the same. Please accept my humour (humor)of this
industry: "We all agree when it is wrong, but don't agree when it is right".
Most won't agree with this, but it is my sardonic view of the industry. To
quickly describe the mid treble, I will quote Stuart. "The octave must be
placed on the positive side of zero.. beatless. The position of the octave
is checked by sounding the 4th & 5th own from the octave being tuned. The
4th should beat faster than the 5th. If the 4th beats faster than the 5th,
the octave is on the positive". You all agree with this. Check by increasing
speed in 3rds & 6ths (as per PTG) "From A49 use 10th in conjunction with 4th
& 5th for accuracy. At A61 the 4th & 5th are not longer audible so 17th &
double octave is used. The interval rates must increase as the frequency
rises. From 69-88 it is necessary to utilise the double & triple octave"

I know this can be described as vague.

My tuning process at the moment (on large piano) is to strip mute F3 to F4.
perform temperament then unisons. Re check temperament with open strings &
adjust where necessary. Tune towards bass & listen to progress of 3rds 6ths,
then 10ths 17ths etc. I give myself little targets. I describe them as
landmarks. From F4 I tune octave and then listen to C# F3 3rd compared to
C#3 to F4 10th. Then 10ths progressing in speed, always checking what has
been previously tuned. After 10ths becoming too fast, 17ths. There are
always other intervals as well, depending what is the easiest to listen to
on that particular piano. I must add that I use the same tests.e;g if I am
using 10ths, I will keep using 10ths, and not change the intervals by
checking by using a 12th. Whatever I am using I want to be consistent. Small
pianos are difficult with large intervals.. I will find the interval easiest
to use.

The interesting part of our work is that we all tune slightly different. 

I hope this explains this a little better. To add fuel to the debate, there
are technicians that say the Yamaha method is wrong as well as others that
say that PTG publications are wrong. I don't want to add to that debate...  

I have noticed the Aussies on this list.. Ron O, Scott J, David Lawson, and
Kerry Cooper. Are there any more hiding in the closet? 

Must stop this. Recording tomorrow, Sunday (choir) then next week with 2
Mozart Concerti, then concerts of  2 nights of Beethoven 4th Concerto. Also
my wife is travelling O/S for business , so I have all that work plus the
most important job of being Dad.

Any more questions, I will answer them in a week or so.

Kind regards

Brian

 

 

  _____  

From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of Ed Sutton
Sent: Thursday, 12 February 2009 12:52 AM
To: pianotech at ptg.org
Subject: Re: [pianotech] Do fourths beat faster

 

Brian-

 

Could you tell us more about this "book from the Sydney course?"

How do you describe octave tuning without using 2:1, 4:2, etc.?

 

I am a great believer in the "more than one way to look at it" approach to
tuning, and everything.

 

Ed Sutton

----- Original Message ----- 

From: Brian Wilson 

To: pianotech at ptg.org 

Sent: Wednesday, February 11, 2009 5:20 AM

Subject: [pianotech] Do fourths beat faster

 

Jeff

 

First, sorry for the late reply. My mind has been trying to understand the
bushfire crisis in the State of Victoria, Australia  I have been reading the
newspapers and watching television at every possible moment. I have also
been trying to explain to my four year old what is on the TV.

Thank you for your work that you posted to this list. I asked you for those
beat rates only to get an agreement or a disagreement with my calculations.
Don't worry about them..waste of your time.

Second paragraph. I know the twelfth root of two as 1.0594631. All the other
information other than 3rds being 14 cents wide is new to me, so thank you
for providing more "food for thought"

Third paragraph. Sorry I didn't mention about short or poor quality pianos..
I know what  you mean.  We are lucky here in Australia that we don't have
many spinet pianos.(the list frightens me when you discuss these ) I am also
lucky that the majority of my work is on fairly decent pianos. 

Fourth paragraph..  I woke up in the middle of Sunday night with the
realisation of understanding my question. As I explained, I don't use 4ths
up there anyway. I use the same intervals as other writers have posted. 

I have not heard of the article by Robert W Young. In an earlier post I
mentioned that we do not use the terminology of 2:1 4:2 8:4 octaves etc. I
have read PTG Journal articles on tuning and it requires a bit of thought to
work it out. Seems like second nature to you. Instead of learning those
described ways of octave tuning, I have been taught a different "language" I
will endeavour to learn more about your "language" so that I won't look like
a dunce when I travel to USA. (hopefully soon) It has been an interesting
few days and sometimes this list didn't know what planet I was from. I
thought the list was going to ban me!.,    I  have learnt so much from you.
Thank you everyone.

I am very fortunate to start my training in this industry when the mentioned
information (Yamaha style teaching at Sydney Conservatorium) was available.
The generation of tuners before me were not privy to this information. My
first lessons in tuning were "until it sounds right". I argued that how can
it sound right when I have no idea! I obtained a copy of the book from the
Sydney course and I was told to "learn this". I was a real pain in the@#$%
as I wanted to count beats and I asked questions that most techs couldn't
answer. I would not been able to comprehend the process of tuning without
obtaining the theory. My learning process is to ask before I act. 

Thanks to all for the experience. I'll try to be quite for a while. BTW
Those guys who are into rebuilding, soundboards, moving agraffes, etc WOW. I
think Ron Nossaman was in Australia a few years ago speaking at our APTTA
Convention.. was it Adelaide 2004? 

I wish William to accuse me of shouting.. "Shouting" is an Australian term
for buying someone a drink.

Kind regards

Brian Wilson

 

No virus found in this incoming message.
Checked by AVG - http://www.avg.com
Version: 8.0.233 / Virus Database: 270.10.21/1945 - Release Date: 11/02/2009
8:01 AM


-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://ptg.org/pipermail/pianotech_ptg.org/attachments/20090212/306d60e9/attachment-0001.html>


More information about the pianotech mailing list

This PTG archive page provided courtesy of Moy Piano Service, LLC