Talk:Eight-foot pitch

message: I have three comments :
1)
As soon as physical (acoustical) calculations are made, these should be in International Units (ISO units as defined by the International Standard Organization)
Sound speed is m/s, length in m etc
"Old units" do not matter : Just convert them into IS0 units !
From my long experiece in international data exchange between engineers, I can tell you that this is the ONLY way to avoid misunderstandings and errors
2)
My second comment requires correction of the article :
A (normal) organ pipe is OPEN at both ends
The open pipe length contains half the wave length
An organ pipe that is open at one end and closed at the other end is called a "Bourdon" 
The end of such a Bourdon pipe is closed and contains a quarter of the wave length
The formula in the article is for an organ pipe that is open at both sides
The formula for an organ pipe open at one side is F = V / (4 x L)
The ISO organization has also defined recommendations for the use of units
The symbol for frequency is the greek letter ν (nu), length shall be "l" (not a capital letter), velocity can be v, sound velocity symbol is c, also not a capital letter.
Capital letters are reserved for units derived from names of persons (W for Watt, V for Volt etc)
There aree a few exceptions to this rule : G for Giga, M for Mega etc)
3)
For the correlation between the lenght of the pipe and the frequency of the note, the physical pipe lenght shall be increased by a certain factor, that also depends on the diameter
The same is true for flutes
The "formula" therefore gives only a rough idea that can be used for basic learning
The real acoustics of organ pipes is far more complicated and requires more detailed knowledge of acoustics and mathematics
But these acoustical calulations result in accurate results
Hope that this was useful and would like the original author to make the corrections so that the text remains coherent in style
Tinsukia (talk) 21:10, 16 July 2012 (UTC)
replies: text: Thank you.  I've tried to implement these suggestions faithfully, but  with two exceptions:  (1) I favor mnemonically appropriate abbreviations, given that the audience for the article is likely to be musical rather than scientific; (2) I think it's best to calculate in traditional units because, after all, we're trying to derive a final result roughly equal to eight feet. Opus33 (talk) 16:42, 23 September 2012 (UTC)
thread_title:  Input from Tinsukia 

message: I am completely ignorant on how Wikipedia works, but am very enthousiastic about the concept
Am having the greatest difficulties in understanding where to post (type) my comments
I published some comments on an original article about "8 ft pitch" and now see that the author has read my comments and corrected his article (I thought that there would be an email if there was a reaction)
I however completely disagree with a comment he (or is it "she" ?) made at the bottom of his (or is it "her" ?) last remark
Here is what I want to say :
I like history and find it also amusing to read about "feet", "inches", miles, wersts and so on
But if you use such terms, it only makes sense if the reader understands what it means
Roman Emperors all had different feet lengths and historians have put considerable effort in trying to trace back how long these feet actually were
I am a so called "scientist" (who likes to play piano) and have been involved in many international/intercultural projects
All these mnemonics, "nice terms" and other "feet" sound nice in poetry, but are not helpful in understanding
Wikipedia is a magnificent tool to increase knowledge and it is therefore imperative that we speak a common language
The confusion and errors caused by differences in perception of units have caused billions in terms of financial damage, caused physical damages and slowed evolution down
Therefore, the International Standards Organisation (ISO) has put considerable effort into agreeing on common units and especially into defining precisely what they mean
If you are not sure on what the speaker means with his term, you will never understand what he means
Being both a musician and a "scientist" I have to say that musicians almost never understand the importance of this subject
This is fine as long as the music sounds nice, but it does not bring us any further in understanding te basics of acoustics
The basic importance of the Wiki page is to explain, which presumes understanding
In conclusion 
1) All historical data need to be converted to ISO (not "metric", that's something else) units
2) All calculations and measurements must be made in ISO units
3) If you want, you can convert the results into "cocktal party" units
With my best regards
Tinsukia (talk) 22:58, 8 November 2012 (UTC)
thread_title: Tinsukia's second round of complaint