Akademik

octave
noun
a) An interval of twelve semitones spanning eight degrees of the diatonic scale, representing a doubling or halving in pitch.

The melody jumps up an octave at the beginning, then later drops back down an octave.

b) The pitch an octave higher than a given pitch.

The singer was known for astounding clarity over her entire five-octave range.

See Also: octavo, oct-

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