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A shortened term which came about in the late 80s but stands for progressive rock music which dates back to the late 60s. It is rock based music that pushed boundaries beyond pop 'single' verse, chorus, verse, bridge, chorus, four minute compositions.

Prog encompasses various styles dating back to the late 60s depending on influences and established music forms being blended together. Classical blended with rock is a style of prog called 'symphonic'. Jazz musicians that composed rock suites are called 'fusion' in the U.S.. In the U.K. jazz and rock combine in the style called 'canterbury'. In France it's called 'zuehl'. Freakout, jam style bands in Germany are called 'krautrock'; elsewhere they are called 'spacerock' and 'jambands'. Bands whos sound is dominated by synthesizers as both rhythm and lead instruments are called 'electronic'. There are many progressive style rock artists who are unclassifiable, who pushed the boundaries of rock in the late 60s and early 70s in completely unique ways such as Funkadelic, Frank Zappa and the early Santana band.

Prog is a nebulous term applied to artists who play rock instrumentation without regard to commercial, pop radio format restraints of song length and/or improvisational content.

Some examples of 70s prog artists beside those already mentioned are Emerson, Lake and Palmer, Mahavishnu Orchestra, Soft Machine, Magma, Embryo, Osibisa, Gong and Tangerine Dream.

Some examples of prog in the new millenium are The Flower Kings, Kenso, Ozric Tentacles, Groove Collective, Deus Ex Machina and Radio Massacre International.
I'm going to the four day baja prog festival in mexicali.
by Miles May 06, 2005
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2
Short for 'Proggressive rock'. A kind of music, usually typified by very long songs with complex structures and time signatures. It started with bands like Pink Floyd, King Crimson, Yes, etc, and bands like Dream Theatre, Opeth, The Mars Volta and Tool all have strong prog influences, making the old prog stereotype of a middle-aged bearded man in a wizard outfit tediously wanking off his guitar pretty much redundant.
Muse are better in their proggier moments...
by StigmataMartyr July 30, 2004
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3
The style of music defined by odd time signatures and bizarre instrumentation. Shortened version of progressive.
Pink Floyd is prog.
by Jeremy December 26, 2003
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A scornful term for a person with politically Progressive views. One who is called a prog ostensibly advocates progress or reform, but the scorner sees him as a subversive, a socialist, a globalist, or a cog of the goverment-media-industrial-elitist complex.
The prog, Cooper Anderson, supposedly a reporter, aired some big story about Trump allegedly talking about grabbing ass, but Hillary set the world on fire with radical Muslims who are in deed raping and pillaging.
by proofarts November 08, 2016
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Abbrieviation for the word PROGRAM commonly used by Tech Geeks and Haxors.
"Hey Man, I'm looking for that one prog to catch spyware, do u have it?"
by gRuVekiTtY July 18, 2005
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6
Also known as 'art rock'.
The Mars Volta are a modern day prog band.
by moongunk November 07, 2004
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Prog=Shit is a universal law discovered by Sir Isaac Newton, the noted Philosopher, Scientist and pioneering DJ.
Prog is shit

Prog? Shit!
by Dr Hoo October 12, 2010
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