Joseph Garrett wrote: > Ryan, > Are you talking about PScale?? If you have that or something like it, > you can do the real math.<G> There's probably an easier way to do this, > but here's how I did it. I did a scale evaluation with a pitch standard > of @A=435cps. (20cents flat of A=440cps). Added all of the tensions of > all of the strings, (yes I did the times two for the bi-chords and times > three for the tri-chords). Then I changed the pitch parameter to > A=440cps. Added all of the tensions of all of the strings and subtracted > the first number from the second number. I long ago defined the variable "fork", from which pitch is derived for each note, so I could get an easy and near instant total tension with pitch adjustments. >I got just slightly over 500 > pounds additional tension...OVER ALL! I got 858 lbs on a Yamaha studio, and 1041 lbs on a S$S D. >If you were to raise pitch a whole tone it is a whole lot > more than if you are just doing half tone and that's a whole lot more > than just a quarter tone p itch raise Uh, yea. >and then we get to the criteria I > use for declaring that I have to do a pitch raised...that's 5 cents. > Anything more than that, I do a pitch raise pass before doing a fine > tuning. Am I adding a lot of tension doing a 5cent pitch raise? I'm > adding something, but it is of little consequence except that it does > torque the plate/case structure in the process....and that's really what > we were talking about in the first place. I'm forever amazed that you guys can charge an extra pitch raise pass for a 5 cent difference. Here, if you can't produce a functional (DEEPLY subjective!!!) tuning in one pass from fifteen cents out, you're off the list. > BTW, I'd like to send this on to the list, as I think this info that > some really need/want. (hopefully<G>) I'll let you do it, if you feel > o.k. with it.<g> No sweat, you already have. <G> Ron N
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