Tuning Source Book/Test: hints #2 & #18

[Thomas Cole]

Julia,

The way this 4:5 ratio method of comparing contiguous M3s works is that 
you listen to the speed of the lower M3. Start marking every fourth beat 
by beating on the stretcher or wherever. Then continue that steady beat 
with your hand and start counting up to 5 within that same time frame. 
The next higher contiguous M3 should beat similarly. No math need be done.

In practice, you learn to detect this 25% increase in beat speed without 
doing the counting routine.

I have no idea what is meant by #2.

Regards,
Tom Cole

KeyKat88 at aol.com wrote:

>  
> Greetings,
>  
>  
>         In hint #2 it claims that you dont want to tune a piano with 
> it muted to single string for the first time in an exam room. What is 
> so unnerving/bad about that, aside from just not being used to it?
>  
>         In hint #18 it says that you should learn to hear 4:5 ratios 
> on contiguous M3's by counting 1 2 3 4 and compare to 1 2 3 4 5.  How 
> does one go about hearing beat rates while doing/counting this? Is the 
> Source Book implying that the contiguous M3 from A2 to C#3 is 4BPS and 
> the next M3 from C#3 to F3 is 5BPS?  If the beat rate in higher pairs 
> of M3's are more than 4 or 5 BPS, say 6 or more than do you have to do 
> the math to arrive what the contiguous M3 above it should beat like?
>  
>   Also, has a tuner ever passed this exam without the skill of knowing 
> how to handle/count the 4:5 ratio? Not that I am not willing to learn 
> it but, that will take time and I have concentrated since inception 
> of tuning on 5ths, 4ths, 3rds, 6ths, octaves and other tests.
>  
> thanks in advance,
> Julia
> Reading, PA
>
>
>
>
>
>
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