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pseudo-octave
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English
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English
Wikipedia
has an article on:
pseudo-octave
Wikipedia
Etymology
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pseudo-
+
octave
Noun
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pseudo-
octave
(
plural
pseudo-octaves
)
(
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.