Progression may refer to: In mathematics: *

Arithmetic progression An arithmetic progression or arithmetic sequence is a sequence of numbers such that the difference from any succeeding term to its preceding term remains constant throughout the sequence. The constant difference is called common difference of that ...

, a

sequence In mathematics, a sequence is an enumerated collection of objects in which repetitions are allowed and order matters. Like a set, it contains members (also called ''elements'', or ''terms''). The number of elements (possibly infinite) is cal ...

of numbers such that the difference between any two successive members of the sequence is a constant *

Geometric progression A geometric progression, also known as a geometric sequence, is a mathematical sequence of non-zero numbers where each term after the first is found by multiplying the previous one by a fixed number called the ''common ratio''. For example, the s ...

, a sequence of numbers such that the quotient of any two successive members of the sequence is a constant *

Harmonic progression (mathematics) In mathematics, a harmonic progression (or harmonic sequence) is a progression formed by taking the reciprocals of an arithmetic progression, which is also known as an arithmetic sequence. Equivalently, a sequence is a harmonic progression whe ...

, a sequence of numbers such that their reciprocals form an arithmetic progression In music: *

Chord progression In a musical composition, a chord progression or harmonic progression (informally chord changes, used as a plural, or simply changes) is a succession of chords. Chord progressions are the foundation of harmony in Western musical tradition from ...

, series of chords played in order **

Backdoor progression In jazz and jazz harmony, the chord progression from iv7 to VII7 to I (the tonic or "home" chord) has been nicknamed the backdoor progressionCoker, Jerry (1997). ''Elements of the Jazz Language for the Developing Improvisor'', p.82. . "Back Doo ...

, 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 The ragtime progression is a chord progression characterized by a chain of secondary dominants following the circle of fifths, named for its popularity in the ragtime genre, despite being much older. Also typical of parlour music, its use origina ...

, chord progression typical of ragtime music and parlour music genres *

Progression Progression may refer to: In mathematics: * Arithmetic progression, a sequence of numbers such that the difference between any two successive members of the sequence is a constant * Geometric progression, a sequence of numbers such that the quotie ...

, music software for guitarists *

, Markus Schulz's second Artist Album, released in 2007 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 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 in ...

, theory of protein transport through the Golgi apparatus inside a cell *

Color progression In color science, a color gradient (also known as a color ramp or a color progression) specifies a range of position-dependent colors, usually used to fill a region. In assigning colors to a set of values, a gradient is a continuous colormap, ...

, ranges of color whose values transition smoothly through a hue, saturation, luminance, or any combination of the three *

Horizontal progression In handwriting, horizontal progression is the gradual movement in the direction of writing across a paper (i.e. left to right for Western alphabets). In some theories of handwriting, it is distinguished from the movements making up individual letter ...

, the gradual movement from left to right during writing a line of text in Western handwriting * A

progressive tax A progressive tax is a tax in which the tax rate increases as the taxable amount increases. The term ''progressive'' refers to the way the tax rate progresses from low to high, with the result that a taxpayer's average tax rate is less than the ...

is a tax by which the tax rate increases as the taxable amount increases *

Semantic progression Semantic change (also semantic shift, semantic progression, semantic development, or semantic drift) is a form of language change regarding the evolution of word usage—usually to the point that the modern meaning is radically different from t ...

, evolution of word usage * Educational progression, an individual's movement through stages of

education Education is the transmission of knowledge and skills and the development of character traits. Formal education occurs within a structured institutional framework, such as public schools, following a curriculum. Non-formal education als ...

and/or

training Training is teaching, or developing in oneself or others, any skills and knowledge or fitness that relate to specific useful competencies. Training has specific goals of improving one's capability, capacity, productivity and performance. I ...

* Progress tracking in video games *

Astrological progression Astrological progressions are one of the main means used in Horoscopic astrology to forecast future trends and developments (the other means is transits, which are simply the ongoing movements of the planets across the sky). As its name implies, ...

, 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 to interpret the purported meaning behind the alignment of the planets at that moment. The idea is that the pl ...

to forecast future trends and developments.

See also