A440 is not a steak sauce, nor is it a tax form. Rather, A440 hz is the standard tuning for musical pitch. Why is that? The reasons include, but are not limited to: The oboe, church versus secular music, and the difficulty of France. Mike Rugnetta explains.Special Thanks to Nicole He and Proprietous for their help with oboe details.Sources:– History of Performing Pitch: The Story of “A” by Bruce Hayneshttps://www.amazon.com/History-Performing-Pitch-The-Story/dp/0810841851– A=432hz: On the Proper Concert Pitch and a New Standardization of Tempo by Brendan Bombacihttps://www.amazon.com/432hz-Proper-Concert-Pitch-Standardization-ebook/dp/B009TTBOAI/ref=sr_1_3?ie=UTF8&qid=1415310567&sr=8-3&keywords=concert+pitch– Why does the orchestra always tune to the oboe?http://www.rockfordsymphony.com/faqs/why-does-the-orchestra-always-tune-to-the-oboe/– ISO http://www.iso.org/iso/iso_catalogue/catalogue_tc/catalogue_detail.htm?csnumber=3601– Why is A4 the standard pitch reference for tuning?http://music.stackexchange.com/questions/18969/why-is-a4-the-standard-pitch-reference-for-tuning/18973#18973– Why are orchestras tuned differently?http://music.stackexchange.com/questions/776/why-are-orchestras-tuned-differentlyIn a previous version of this episode, the music used was is (in order of appearance):– Walking (In Tune), Rene Hell– Swan Lake, Swan Theme, Tchaikovsky– Polovtsian Dances, Borodin– Piano Sonata 15, Beethoven (Digression Music)– Peer Gynt: Morning Mood, Grieg– Die liederliche Gesellschaft von allerley Humor: Allegro – Battalia a 10, Biber