He might also measure the speaking lengths at the top of the scale, and calculate percent of breaking strength - C8 shouldn't be longer than 52 mm or so, which would be a BP of 60%. PAULREVENKOJONES at aol.com wrote: > Thanks, Ron. I've forwarded this on. If you think of anything else in this > regard, or if anyone else has ideas or experience with this beast, I and he > would be most appreciative. > > Happy Thanksgiving! > > Paul > > > In a message dated 11/25/2009 3:11:21 P.M. Central Standard Time, > rnossaman at cox.net writes: > > PAULREVENKOJONES at aol.com wrote: > >> A question from a colleague which I can't answer; anyone? >> >> / I am tuning an Ibach grand with a movable action. It has 99 possible >> notes only 85 keys. It moves to the left if you want to play really low >> bass notes, or it moves right it you want to play higher than usual >> treble notes. It moves a 5th in either direction. >> > > Cool! > > > >> Where is A440? >> > > At A-4, naturally. <G> Ok, ok, Find the unison with the > speaking length around 415mm. That ought to be it. I'd guess > the transposer would be centered, but what I think is > reasonable...isn't necessarily the way it is. > > Ron N > > > >
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