MOTM

Stretch - Gasp! - Yes - OK - 

The description at 
http://www.fenderrhodes.org/rhodes/manual/ch5.html is a basic
description and is probably adequate.  Yeah - OK -

But to be really, really, really accurate (or, actually, somewhat more
perfectly inaccurate) "stretch" (or the ammount of imperfect tuning
that makes up for human hearing's predilections) is also dependent on
the peculiar "inharmonisity" of an instrument. 

Yeah - and in the case of a piano, this has to do with its strings. 
So the "stretch" I use for my Steinway "A" is somewhat  different from
my "D" and very different from my very cool old Yamaha String Electric
Grand (which is what I actually use for almost all of my recording,
believe it or not - but that's another story).

Yeah - so by finding the inhamonisity of the strings on each
instrument, I can tune them using unique "stretch" formulas - and let
me tell you - they do "sparkle" as a result.  And - go figure - they
sound just right even when played together.  Like - even though their
strings are tuned differently!

So in the case of my Hammond(s) and Allen Church-type-organ - well - I
never tested their "stretch". It's a fascinating idea, though.

The Hammond's tuning, of course, is determined by the RPM spin of its
tone generator - and as that's determined by the stability of the AC
power source.

I've tuned all my stringed instruments to an average "A" between my
Hammonds and my glockenspiels, the vibes, and xylophone (Approximately
A=440.52Hz).  From that "A," I've applied the unique "stretch"
formulas to the stringed instruments.

I've wondered what this all would mean regarding the tuning of VCOs
etc.  I intend to explore that eventually - and much to his chagrin,
I'll enlist Will's (my 16 YO son's) assistance in all this <LOL>.

Yeah - OK - for what it's worth... I think "stretch" has a place in
all this.  Question is, maybe, how should we control stretch?  Would
this be controllable by MIDI?  Now I'm way out of my depth.  You guys
tell me.  If "stretch is to be accommodated - well - how?

Thanks so much.

Bill (and Will)





--- In motm@yahoogroups.com, Dave Manley <david_l_manley@...> wrote:
>
> There's a basic explanation and diagram showing how many
> cents to tune plus/minus across a keyboard here:
> 
> http://www.fenderrhodes.org/rhodes/manual/ch5.html
> 
> Scroll about halfway down or search for Stretch.
> 
> -Dave
> 
> Richard Brewster <pugix@...> wrote:                              
What is stretch?
>  
>  Richard Brewster
>  
>  Suit & Tie Guy wrote:
>  > as an aside, i thought i'd point out that "stretch" should be a  
>  > parameter in any tuning system. is this something which is part of  
>  > the MIDI Tuning Thingamabobbie or is it a completely fictitious
thing  
>  > that STG for some demented reason wants in a digital Hammond
organ to  
>  > be able to play with acoustic pianists? it seems to me this is  
>  > something useful to have under voltage control.
>  > ---
>  > Suit & Tie Guy
>  > suitandtieguy.com
>  > stgsoundlabs.com
>  >   
>  
>  
>      
>                                
> 
>        
> ---------------------------------
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