1 four-line octave | Definition of four-line octave

four-line octave

noun

Definition of four-line octave

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

First Known Use of four-line octave

circa 1933, in the meaning defined above

History and Etymology for four-line octave

so called from the four accent marks of the symbol C′′′′representing the third C above middle C

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