A440 (Japanese Wikipedia)

Analysis of information sources in references of the Wikipedia article "A440" in Japanese language version.

refsWebsite

Global rank Japanese rank

934^th place

57^th place

2books.google.com

3^rd place

61^st place

low place

low place

355^th place

594^th place

629^th place

1,207^th place

aon.at

members.aon.at

Franz Nistl, Table of European orchestra tunes, part 2
Franz Nistl, Table of orchestra tunes

books.google.com

Robert Thomas Beyer (1999). Sounds of our times: two hundred years of acoustics. Springer. p. 32. ISBN 978-0-387-98435-3
Helmholtz, Hermann von (1863). Die Lehre von den Tonempfindungen als physiologische Grundlage für die Theorie der Musik, p.29. J. Vieweg.

google.co.jp

books.google.co.jp

iso.org

ISO 16:1975 Acoustics -- Standard tuning frequency (Standard musical pitch). International Organization for Standardization. (1975)

nist.gov

tf.nist.gov

NBS Technical News Bulletin, pp. 120-121, August 1957