Entertainment / Literature / Octave: Not to be confused with octavo, below, an octave is the first part of an Italian or Petrarchan sonnet, an octave is a set of eight lines that rhyme according to the pattern ABBAABBA. See sonnet, below.
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Science / Astrology / Higher Octave Planets: The three outermost planets, which symbolize the higher or spiritual level of expression in contrast to the lower or physical level symbolized by the inner planets with which they are linked. Uranus, MORE
Science / Astrology / Lower Octave Planets: Mercury, whose higher octave is Uranus; Venus, whose higher octave is Neptune; and Mars, whose higher octave is Pluto. Lower octave planets are associated with a lower or physical level or expression; MORE
Entertainment / Music / Chromatic Scale: Includes all twelve notes of an octave. MORE
Entertainment / Music / Chromatic: Melody or harmony built from many if not all twelve semitones of the octave. A chromatic scale consists of an ascending or descending sequence of semitones. MORE
Entertainment / Music / Equal Temperament: Tuning system based on the division of the octave into twelve equal half steps: the normal system used today. MORE