He does not play it safe; he jumps into the fire feet first, exploring extended chord positions and somehow landing on notes you’d never expect, giving one the thrill of hearing a master improviser in his element. At the beginning of the 20th century, art music was divided into “serious music” and “light music”. During the second half of the century, there was a large-scale trend in American culture toward blurring the boundaries between art and pop music.
Beginning in 1966, the degree of social and artistic dialogue among rock musicians dramatically accelerated for bands who fused elements of composed music with the oral musical traditions of rock. During the late 1960s and 1970s, progressive rock bands represented a form of crossover music that combined rock with high art musical forms either through quotation, allusion, or imitation. Progressive music may be equated with explicit references to aspects of art music, …