o prog rock is short for progressive rock which means a more complex type of music than popular music (progressive music has never really been popular because of the neglect it gets because it has more than the sheer simplicity of the music that normal mortals are used to) there are actually alot of types of progressiv (Classic Prog, Prog Rock, Prog Metal) but my fav prog bands are Rush, Genesis, Yes, and Gentle Giant...someday i wish to master progressive only with a harder edge (progressive metal)....

....What a long, strange trip its been.....