< Bullshit, you goddamned retard. concert pitch has been A 440 for hundreds of years. When you make outrageous statements like that, why doesn't it occur to you that you need to validate them?
I guess he didn't research enough before opening the twathole. "Concert pitch" wasn't set to a global standard until the 20th century.
en.wikipedia.org/wiki/A440_%28pitch_standard%29