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Progression may refer to: In mathematics: * Arithmetic progression, sequence of numbers such that the difference of any two successive members of the sequence is a constant * Geometric progression, sequence of numbers such that the quotient of any two successive members of the sequence is a constant In music: * Chord progression, series of chords played in order * * Backdoor progression, the cadential chord progression from iv7 to I, or flat-VII7 to I in jazz music theory * * Omnibus progression, sequence of chords which effectively divides the octave into 4 equal parts * * Ragtime progression, chord progression typical of ragtime music and parlour music genres * Progression, music software for guitarists In other fields: * Age progression, the process of modifying a photograph of a person to represent the effect of aging on their appearance * Cisternal progression, theory of protein transport through the Golgi apparatus inside a cell * Color progression, ranges of color whose values transition smoothly through a hue, saturation, luminance, or any combination of the three * Horizontal progression, the gradual movement from left to right during writing a line of text in Western handwriting * A progressive tax is a tax by which the tax rate increases as the taxable amount increases * Semantic progression, evolution of word usage * Educational progression, an individual's movement through stages of education and/or training * in video games * Astrological progression, used in Horoscopic astrology to forecast future trends and developments. ==See also== * Progress (disambiguation) 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「progression」の詳細全文を読む スポンサード リンク
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