Octave (interval region): Difference between revisions
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The '''octave''' is one of the most basic [[Gallery of Just Intervals|intervals]] found in musical systems throughout the entire world. It is usually called the "interval of equivalence" because tones separated by an octave are perceived to have the same or similar pitch class to the average human listener. The reason for this phenomenon is probably due to the strong region of attraction of low [[Harmonic Entropy|harmonic entropy]], or the strong amplitude of the second [[harmonic]] in most harmonic instruments. | The '''octave''' is one of the most basic [[Gallery of Just Intervals|intervals]] found in musical systems throughout the entire world. It is usually called the "interval of equivalence" because tones separated by an octave are perceived to have the same or similar pitch class to the average human listener. The reason for this phenomenon is probably due to the strong region of attraction of low [[Harmonic Entropy|harmonic entropy]], or the strong amplitude of the second [[harmonic]] in most harmonic instruments. | ||