The JC ET part 1

[Richard Moody]

I find setting the A--C#--F--A   in the very beginning gives a great
advantage.  I use A3--A4 as proven when F3--A3 and F3--A4  beats
equal.  This is supposed to be a 4:2 octave.  Then I tune the 4ths and
5ths from both A3 and A4.  (E4 and D4) Then tune Bb3 to F4 (5th) and
listen to Bb3 D4.  Compare the two thirds A-C# and Bb-D.  Do they
"progress" ?  Is one slightly faster than the other?....ever so
slightly faster?  If they sound the same, not to worry until you have
tuned Bb3--Eb4 then B3--Eb4 (D#).   You now have three "progressive
3rds" and if these aren't right there is little sense on going further
until you tweek these to your liking.
    From the above, if  you can tune the three contiguous 3rds by
themselves from A you ought to be able to hear the ideal beat of  the
C4--A4 by itself.   This 6th should beat faster than the C#4-F4  3rd.
(11 to 11.87).   It makes an interesting exercise to tune in this
order, A3--C#4--F4--A4, then C--A4 listening only to the beats of the
3rds and the one 6th and then compare C4-F4 to see if a good fourth is
there.
 ---ric

----- Original Message -----
From: Ola Andersson <pianola@online.no>
To: <pianotech@ptg.org>
Sent: Thursday, June 07, 2001 12:32 AM
Subject: SV: The JC ET part 1


| This part might be confusing
|
| > It is also possible to tune
| > F3-A3 "8bps" A3-C#4 "9bps" C#4-F4 "10bps"
| > Like I sometimes get the the F3-A3 same speed as A3-C#4 but the
C#4-F4 is slightly to fast. >Then I make the C#4 slightly sharper so I
get a progression of the thirds.
|
| I meant this is still the A3-C#4 third speed test
| It's before tuning the F's contigues to ET.
|
| Ola
|