PROGRESSIVE ROCK IS AMONG THE MOST versatile musical forms. The genre is teeming with musicians who helped it grow from a form of mainstream pop in the mid ’60s to a style of music that, by the early ’70s, placed greater emphasis on experimentation with respect to composition, instrumentation, and sound. This rock-driven approach established deep roots in America, Britain, and Europe, beginning with bands like the Moody Blues, Pink Floyd, Procol Harum, and Frank Zappa, before reaching a popularity peak in the 1970s as Yes, Genesis, King Crimson, Emerson Lake & Palmer, and other greats came to the scene. Every decade since has witnessed the continued evolution of prog rock courtesy of bands like Rush, Marillion, Styx, Dream Theater, Porcupine Tree, and, more recently, Animals As Leaders, the Mars…
