The note designated by the first ledger line below the treble staff; 261.63 hertz.
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"Middle c" Quotes from Famous Books ![]() ![]() — We Can't Have Everything • Rupert Hughes ![]() ![]() — Scientific American Supplement No. 819 - Volume XXXII, Number 819. Issue Date September 12, 1891 • Various ![]() ![]() — Music: An Art and a Language • Walter Raymond Spalding |
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