| Genre | |
| Pioneers | Yes (band) • Genesis (band) • Pink Floyd • King Crimson • Renaissance (band) |
| Emergence | Late 1950s |
| Continuity | Uninterrupted evolution into the 21st century |
| Popularity | Constant critical respect and commercial success |
| Also known as | Prog Rock |
| Characteristics | Long compositions • Intricate song structures • Complex rhythms • Classical and Jazz influences • Concept albums • Use of Synthesizers and Mellotrons |
| Country of origin |
