Piano tuning

[Raffagli Raoul]

Hi! Yes, the three strings are sligthly off, there is'n a right value.
It's necessary to create a "battimento", and most of pianos are tuned
not with an electronic tuner right for this reason; usually
piano-professionists wants their piano to be tuned by a man with lot of
experience, the tuning is not mathematically calculated so that the
sound depends on the ability (and the will) of the tuner. Also important
is that the low strings are alone (one string per key), then they become
two and three as the pitch raise (as you know, lower pitch=more
harmonics, so you don't need to make a richer sound with "battimento").
If you need them, I can open my piano (a Schulze-Pollmann) and map
exactly where the number of strings increases.
Please also note that increasing th difference between strings, you
obtain a nice chorus and it can sound allike a honky-tonk.
Hope this can help. 
	Raoul 
PS: all this comes from my classical music studies at conservatory, a
bit from physic but nothing related to synths. Maybe you need different
infos.
Just an idea, maybe alredy usually applied: you should obtain an effect
quite close to this with a chorus votage-controlled, driven by the
keyboard.


Raoul Raffagli    -    Italy
Raffa_Raoul at iol.it


Tim Ressel wrote:
> 
> Hey List!
> 
> Does anyone know the details of how the string triplets on a piano are tuned?
> Are theu tuned slightly off from each other? How much?
> 
> Thanks,
>   --Timster
> 
> Tim Ressel--Compliance Engineer
> Hewlett-Packard
> Verifone Division
> 3755 Atherton Rd.
> Rocklin, Cal
> 916-630-2541
> timothy_ressel at hp.com