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 * Harmonic progression (mathematics), sequence of numbers such that their reciprocals form an arithmetic progression 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 The omnibus progression in music is a chord progression characterized by chromatic lines moving in opposite directions. The progression has its origins in the various Baroque harmonizations of the descending chromatic fourth in the bass ostinato pat ...

, sequence of chords which effectively divides the octave into 4 equal parts **

Ragtime progression Ragtime, also spelled rag-time or rag time, is a musical style that flourished from the 1890s to 1910s. Its cardinal trait is its syncopated or "ragged" rhythm. Ragtime was popularized during the early 20th century by composers such as Scott J ...

, chord progression typical of ragtime music and parlour music genres * Progression, music software for guitarists * '' Progression'', Markus Schulz's second Artist Album, released in 2007 In other fields: *

Age progression Age progression is the process of modifying a photograph of a person to represent the effect of aging on their appearance. Digital image processing is the most common technique today, although sometimes artists' drawings are used. Age progressi ...

, the process of modifying a photograph of a person to represent the effect of aging on their appearance *

Cisternal progression The Golgi apparatus (), also known as the Golgi complex, Golgi body, or simply the Golgi, is an organelle found in most eukaryotic cells. Part of the endomembrane system in the cytoplasm, it packages proteins into membrane-bound vesicles insid ...

, 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 In Western handwriting, horizontal progression is the gradual movement from left to right during writing a line of text. In Hebrew and Arabic writing systems, the movement is from right to left. See also *Graphonomics Graphonomics is the inter ...

, 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 * Progress tracking in video games * Astrological progression, used in

Horoscopic astrology Horoscopic astrology is a form of astrology that uses a horoscope, a visual representation of the heavens, for a specific moment in time in order to interpret the inherent meaning underlying the alignment of the planets in astrology, planets at th ...

to forecast future trends and developments.