A Moderated Mechanical Music Discussion Group for Collectors, Technicians, Dealers, and Fans
MMD > Archives > Subject Index > (Numbers) > 440


The most recent submissions are listed first.


Digest NrSubject and Author
2017.04.06.01History of U.S. Standard Pitch, A = 440 Hz, from Grant Chapman, NY
2000.11.23.03Wurlitzer Organ Pitch vs. 'A' 440 Hz, from Bill Finch
1998.04.05.05History of U.S. Standard Pitch, A = 440 Hz, from Ed Gaida
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