A few interesting bits of knowledge with link and extract. I may add to this as I think of things.

Where is International Standardization Organization (ISO) located and how old is it? Link
Geneva, Switzerland
The International Organization for Standardization was founded in 1947 and is headquartered in Geneva, Switzerland. The organization began in the 1920s as the International Federation of the National Standardizing Associations (ISA).

What is the international standard organization mission? Link
ISO is an independent, non-governmental international organization with a membership of 165 national standards bodies.
Through its members, it brings together experts to share knowledge and develop voluntary, consensus-based, market relevant International Standards that support innovation and provide solutions to global challenges.
You'll find our Central Secretariat in Geneva, Switzerland. Learn more about our structure and how we are governed.l Standardizing Associations (ISA).

Pitch notation in different Countries.
https://music.stackexchange.com/questions/58177/pitch-notation-in-different-countries

Does Scientific pitch notation have other names?
Scientific pitch notation (or SPN, also known as American standard pitch notation (ASPN) and international pitch notation (IPN))[1][unreliable source?] is a method of specifying musical pitch by combining a musical note name (with accidental if needed) and a number identifying the pitch's octave.

why does the ISO use scientific pitch notation? A440 (pitch Standard)
This standard was taken up by the International Organization for Standardization in 1955 (reaffirmed by them in 1975) as ISO 16. It is designated A4 in scientific pitch notation because it occurs in the octave that starts with the fourth C key on a standard 88-key piano keyboard.

What is the most popular musical pitch notation?
The two notation systems most commonly used today are the Helmholtz pitch notation system and the scientific pitch notation system.

Now this is confusing :-)
Helmholtz pitch notation

What is the most popular musical instrument in the world? link
#1 – Piano. It might surprise you to know that 21 million Americans play the piano! ...
My Comment: This is probably why the ISO Scientific Notation uses this table. Because it matches the C notes on the most popular instrument in the world and from what I have found so far only 2 large church organs that exist in the world can play notes below the human hearing range (below the piano).

Here is PG-Music located.
British Columbia Canada (my country).


Last edited by bowlesj; 12/23/20 04:13 PM.
John Bowles
My playing in my 20s:
https://www.reverbnation.com/johnbowles