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Consequently we may have possible effects on... tuning... tone....
I think it would be clearer to say that we are considering variations in reed
pitch, behavior, and tone. "Tuning" is only one of many things which affects those three characteristics.
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Rich, don't you think that your observation on the 'Morris Hohners' could be a bit biased? I mean, could you know that all of them had the same distribution of of 'non breaking in' and immediate 'hard' playing of their instruments? Did you try to identify and sort out what different 'damage' could have been done to the tone in respective instruments? or did you merely in general notice that they did not sound so well? Have you not noticed the same with any other instruments from the same batch? or turning it around..maybe the Morris players came back with their instruments because they had noticed something gone wrong and you/we do not know the comparable status of other similar instruments you have sold?
We've sold scores of identical boxes over many years - most to whom we know what type of music they play. Our customers complain readily to us when their box doesn't sound/play as well as they think it should - and particularly after comparing theirs to other people's identical make/model/key boxes. Invariably, these folk are Morris musicians who complain that "no matter how hard they press it, their boxes are still slow to speak and not as loud or responsive as other similar boxes". They agree that they've played their new box "full bore" from day one, and within a couple months had noticeably depreciated.
I can readily tell the difference in response when I play these damaged boxes. Generally speaking, the wonky treble reeds are mostly in the G row, mid range. The higher reeds usually sound fine. The bass reeds usually are terrible. Oh, and often there is one treble reed that cracks (the same reed in each box!)
Morris players who don't overstress their boxes don't complain about wonky reeds. Musicians playing other genres and gigs don't complain much either. Seems that there's enough "comparable" going on here to make some generalizations.
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but what I wonder is how you/we can know that it was the *hard initial playing* that may have caused the change and not the *total amount of hard playing*?? The point being to separate the possible specific importance of a 'breaking-in routine'.....which is the real issue here
The timing of the reed degradation seems to be the defining aspect. We notice this within the first few month's use of a new box. We don't get much complaint (actually, only VERY rarely) of boxes becoming wonky reeded when they are beyond a few months old. Ergo: some playing factor degraded boxes when they were first new. The boxes that are most affected belong to Morris musicians who profess to playing as loud as they could - constantly.
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But my experince from instruments not having been touched for long periods does say that reeds do go out of tune, some more, some less and some again seem to have stayed in tune for the same long period.
Possibly because the valves have stiffened up which will cause the pitch to change. The valves can vary greatly in dimensions, quality, cut, and securance with could easily account for the differences.
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It has happened that some of them regain (part of) the (assumed) original pitch after playing without retuning. This procedure I have tried a few times but I can't say that these instruments have been very uniformly or systematically played. Nevertheless the impression remains.
Again - consider the valves. When limbered up to become closer to working the way they did when newer, the pitch of the reed with be closer to what it was then too.
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Rich:"As a part of the operational considerations, I also acknowledge that a reed will be sound slightly higher in pitch when played at a very low volume and somewhat lower in ptich as it approaches it's maximum limit."
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Goran: This is not generally correct. It varies with reed frequency and profile type. Without going into details this is one of the functions that J Cottingham has studied and I guess you have studied his paper(s) on it....
"Frequency and profile type" IS included in my considerations and holds true. J Cottinghams papers show the same results I'm observing. What is not "generally correct" about this observation?
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I have come across to me unexplained irregularities in the pitch variance. One identifiable factor seems to be the accuracy of reed alignment which may change by 'hard handling'. Agree?
Yes, reed alignment can also affect pitch, though I'm pretty hard pressed to remember a situation where alignment has been changed by "hard handling". If by which you mean excessively stressful playing -no. If you mean intentional reed or plate movement by the act of tuning or resetting a reed - yes.
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Rich:"Overstressing reeds also seems to limit the latitude of their swing (how far it pedulates) which is a dynamic issue.
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Goran:I don't see what you mean really. I can't share the observation either...Could it be due to some local damage being present? in that case I can understand such an effect. What else is "overstressing" in this context?
Getting into work hardening will make the reed stiffer - which will make it not swing as far (in its oscillation or vibration) for the same air pressure. Metal fatigue will make the reed weaker, which results in the reed not being able to pendulate in its normal latitude.
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Rich:"Change in tone is seems to have wide acceptance as a real event. I wonder if part of that has to do with some sort of molecular realignment of the reed ...."
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Goran:The 'common' knowledge about the basis of the tonal spectrum to me seems to speak against such speculations...
What is that common knowledge?
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Rich:"....though I suspect that most of that tone change has to do with the rest of the box becoming more concordant with repeated vibrational patterns."
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Goran:an interesting speculation also but I really find it hard to accept any theoretically understandable basis for it
I'm just going from my own observations and things I've heard repeatedly from violinists, hammered dulcimer players, pianists, flautists, etc..... In the case of violins, they will improve in response and tone by playing. If you put "played in" strings on a new fiddle and new strings on a "played in" fiddle, the latter will have appreciably better response and tone. Same thing with a clarinet's reed/body, guitar's strings/body....
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Gotthard Richter seem to exclude such box effects....
I'm not familiar with Gotthard Richter's work. What did he do which is relevant here?