Progressive Rock

Originating in the United Kingdom during the late 1960s, progressive rock developed from psychedelic and art rock by integrating elements of classical, jazz, and folk music. The genre is defined by its ambitious compositional scope, prioritizing instrumental virtuosity, complex harmonic language, and unconventional time signatures. Its sonic texture is frequently augmented by early synthesizers, Mellotrons, and non-standard rock instrumentation like flute or violin. The ethos rejected the constraints of pop singles, favoring long-form, multi-movement suites and concept albums. After a period of significant commercial success in the early 1970s, the genre's mainstream prominence waned, though it has retained a dedicated following and influenced numerous subsequent styles.