Octave (disambiguation)

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An octave, in music, is the interval between one musical pitch and another with half or double its frequency.

Octave may also refer to

• The Octāves, an all-male a cappella group from the University of Richmond
• Octave#Electrical relevance a doubling or halving of frequency, in physics and engineering
• Octave (horse), a champion graded stakes race thoroughbred racehorse
• Octave (poetry), the first eight lines of a sonnet
• Sicilian octave, a distinct poetic form
• GNU Octave, a program for performing numerical analysis, mostly compatible with MATLAB
• Octave (liturgical), an eight-day feast in the liturgical sense, especially in the Roman Catholic tradition
• Ottava rima, an Italian verse form
• "The Law of Octaves" is a concept from the history of the development of the Periodic Table of Chemical Elements (see John Newlands or Mendeleev) and has nothing directly to do with music.
• an early term for octonion in algebra
• Octave (album), an album by The Moody Blues
• Electromagnetic radiation can be divided into eighty-one octaves.
• Octave Tassaert, French painter

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