Emerson, Lake & Palmer is always all over the place, they're not the most consistent band. I really like their first 2 albums and Brain Salad Surgery but never really enjoyed Tarkus for some reason. Tarkus itself doesn't really hit the heights of other side long epics like Focus' Eruption and Pink Floyds Echoes. There's some good jamming in there but its not a very cohesive piece and doesn't always sound the most pleasant. The rest of the songs are short pieces with varying degrees of quality. Noone really needs to hear Jeremy Bender before they die. The album cover is one of the best album covers ever though, extra point for that.