See also: Progressive music § Pop and rock
Although a unidirectional English "progressive" style emerged in the late 1960s, by 1967, progressive rock had come to constitute a diversity of loosely associated style codes.7 When the "progressive" label arrived, the music was dubbed "progressive pop" before it was called "progressive rock",89 with the term "progressive" referring to the wide range of attempts to break with standard pop music formula.10
Music writer Doyle Greene believes that the "proto-prog" label can stretch to "the later Beatles and Frank Zappa", Pink Floyd, Soft Machine, and United States of America.11 Edward Macan, an author of progressive rock books, says that psychedelic bands like the Nice, the Moody Blues, and Pink Floyd represent a proto-progressive style and the first wave of English progressive rock.12 Conversely, academics Paul Hegarty and Martin Halliwell identify the Beatles, the Beach Boys, the Doors, the Pretty Things, the Zombies, the Byrds, the Grateful Dead and Pink Floyd "not merely as precursors of prog but as essential developments of progressiveness in its early days".13
At the time, critics generally assumed King Crimson's album In the Court of the Crimson King (1969) to be the logical extension and development of late 1960s proto-progressive rock exemplified by the Moody Blues, Procol Harum, Pink Floyd, and the Beatles.14 According to Macan, the album may be the most influential to progressive rock for crystallizing the music of earlier "proto-progressive bands ... into a distinctive, immediately recognizable style".15 He distinguishes 1970s "classic" prog from late 1960s proto-prog by the conscious rejection of psychedelic rock elements, which proto-progressive bands continued to support.16
Notes
Citations
Bibliography
Macan 2005, p. xxiii. - Macan, Edward (2005). Endless Enigma: A Musical Biography of Emerson, Lake and Palmer. Open Court. ISBN 978-0-8126-9596-0. https://books.google.com/books?id=tXoIAQAAMAAJ ↩
Holm-Hudson 2013, p. 84. - Holm-Hudson, Kevin, ed. (2013). Progressive Rock Reconsidered. Routledge. ISBN 978-1-135-71022-4. https://books.google.com/books?id=JQCPAQAAQBAJ&pg=PA275 ↩
Hegarty & Halliwell 2011, p. 11. - Hegarty, Paul; Halliwell, Martin (2011), Beyond and Before: Progressive Rock Since the 1960s, New York: The Continuum International Publishing Group, ISBN 978-0-8264-2332-0 https://books.google.com/books?id=taA2AqdCAJ0C ↩
Moore 2004, p. 22. - Moore, Allan (2004). Jethro Tull's Aqualung. Bloomsbury Publishing. ISBN 978-1-4411-1315-3. https://books.google.com/books?id=DMWoAwAAQBAJ&pg=PA22 ↩
Greene 2016, p. 182. - Greene, Doyle (2016). Rock, Counterculture and the Avant-Garde, 1966–1970: How the Beatles, Frank Zappa and the Velvet Underground Defined an Era. McFarland. ISBN 978-1-4766-2403-7. https://books.google.com/books?id=ELeaCwAAQBAJ ↩
Cotner 2000, p. 90. - Cotner, John S. (2000). "Music Theory and Progressive Rock Style Analysis". Reflections on American Music: The Twentieth Century and the New Millennium. Pendragon Press. ISBN 978-1-57647-070-1. https://books.google.com/books?id=EzWkTNxqmF0C&pg=PA101 ↩
From about 1967, "pop music" was increasingly used in opposition to the term "rock music", a division that gave generic significance to both terms.[7] ↩
Haworth & Smith 1975, p. 126. - Haworth, John Trevor; Smith, Michael A. (1975). Work and Leisure: An Interdisciplinary Study in Theory, Education and Planning. Lepus Books. ISBN 978-0-86019-009-7. https://books.google.com/books?id=7IZqAAAAMAAJ ↩
Macan 2005, p. 75. - Macan, Edward (2005). Endless Enigma: A Musical Biography of Emerson, Lake and Palmer. Open Court. ISBN 978-0-8126-9596-0. https://books.google.com/books?id=tXoIAQAAMAAJ ↩
Macan 1997, p. 23. - Macan, Edward (1997). Rocking the Classics: English Progressive Rock and the Counterculture. Oxford University Press. ISBN 978-0-19-509887-7. https://archive.org/details/rockingclassicse0000maca ↩