. "3" . _:vb6775315 . _:vb6775315 "(music) A tone three fifths above C in the cycle of fifths; the sixth tone of the C major scale; the first note of the minor scale of A minor; the reference tone that occurs at exactly 440 Hz; the printed or written note A; the scale with A as its keynote."@en . _:vb6775316 "Orchestras traditionally tune to a concert A."@en . _:vb6775316 .