Octave

Octave may refer to:

• The JI interval 2/1;
• An interval that spans seven steps of the diatonic scale, especially its perfect variety (P8, perfect eighth);
• An interval region of around 1200 cents, exactly or approximately equal to 2/1 ratio. See Octave (interval region).

English Wikipedia has an article on:

Octave

See also

• Octave reduction
• Octave complement

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