|Cultural origins||Mid to late 1960s, United Kingdom and United States|
Most normal rock songs follow a very simple pattern in the way they are arranged. This pattern is a verse followed by a chorus, then a different verse, and then the same chorus. Progressive rock is more complicated than this, and can require more skill to play.
Progressive rock was first made in the late 1960s, but became most popular in the 1970s. It continues to be popular today, too. Progressive rock began in England and spread throughout Europe. It remains most popular in Europe, but there are several notable American and Canadian progressive rock bands. This genre was influenced by classical music and jazz fusion. Over the years, different sub-genres of progressive rock have been created, such as symphonic rock, art rock, math rock, and progressive metal.
Progressive rock artists wished to create music that was not limited to the structures of common popular rock and pop music. They wanted to make rock music that "progressed" to the complexity of jazz and classical music by creating a more serious, complex and sophisticated type of rock music. Progressive rock bands may have influences from psychedelic rock, folk music, traditional music, world music, and jazz or jazz fusion. It is also referred to as "prog rock" as an abbreviation, or as "Hobbit rock" because of frequent medieval or fantasy themes in the lyrics.
Progressive rock bands write and play songs that have many changes during each song. Regular rock songs have verses and a chorus, but progressive songs can have many different sections. For example, instead of having verses and choruses, progressive rock songs may have many different musical themes, solos, and musical moods. A typical progressive song might have a form such as: Introduction-Verse-Chorus-instrumental section-New verse-New chorus-Instrumental section-Ending. Because of their depth and complexity, progressive rock songs are not played on pop music radio very often.
Some of the important progressive rock bands from the late 1960s and early 1970s include The Moody Blues, Jethro Tull; Yes, Genesis; Pink Floyd; Emerson; Lake & Palmer; Rush; Goblin; Gentle Giant; Van der Graaf Generator, and King Crimson.
Characteristics of progressive rock
Progressive rock is difficult to define, because progressive rock bands often play different types of progressive rock music which sound different. There are some common elements that are in most progressive rock band music, such as long, complex songs, unusual time signatures, unusual instruments or ways of using them, and use of improvisation, which means making up or inventing music while playing on stage.
Albums by progressive rock groups are often concept albums. In a concept album, the songs have a common theme, are arranged in a certain order and often tell a story or represent a larger concept.
- Macan 1997, p. 22,140.