The frequency you want the dial on is 432hz not 440.

“This was the year (1939) that A=440 became the international standard. The American Federation of Musicians accepted the A440 as standard pitch in 1917, and the U.S. government followed suit in 1920.[ii] One must surely ask why Nazi propaganda minister, Joseph Goebbels argued for this odd intrusion into musical creativity, persuading Hitler’s supposed enemies in Britain to adopt this “superior” standard tuning for the “Aryan/Master Race.” What did the Nazis (and their secretive US financiers) have to gain from this?” —-

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