> Did you not know this? I did not. I don't know exactly what to look for, but all I found was a single paragraph on the Sound Dues article on Wikipedia. https

> Did you not know this? I did not. I don't know exactly what to look for, but all I found was a single paragraph on the Sound Dues article on Wikipedia. https://en.wikipedia.org/wiki/Sound_Dues#Copenhagen_Convention https://en.wikipedia.org/wiki/Sound_Dues#Copenhagen_Conventi...