pseudo-octave
(music) An interval whose frequency ratio is not 2:1 (that of the octave), but is perceived or treated as equivalent to this ratio, and whose pitches are considered equivalent to each other as with octave equivalency.
A person sitting (typically) in the back seat of a car issuing (unsolicited and usually unwanted) instructions to the driver.
isopropylamine
plural of futtock shroud
アンサンブルはそのパッセージを擬似オクターブ（周波数比が2:1ではないがオクターブと同等に認識される音程）を中心に据え、音高をオクターブ同等として扱った。
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DiQt
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