two-line octave


Definition of two-line octave

: the musical octave beginning with and ascending from the first C above middle C — see pitch illustration

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First Known Use of two-line octave

circa 1931, in the meaning defined above

History and Etymology for two-line octave

so called from the two accent marks of the symbol C″ representing the first C above middle C

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The first known use of two-line octave was circa 1931

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