 Other groups that frequently use these eccentric sections include Haken, Between the Buried and Me, Thank You Scientist, Opeth, Liquid Tension Experiment, Circus Maximus, and many, many others.Progressive metal can be broken down into many sub-genres corresponding to certain other styles of music that have influenced progressive metal groups.For example, two bands that are commonly identified as progressive metal, King's X and Opeth, are at opposite ends of the sonic spectrum to one another King's X are greatly influenced by softer mainstream rock and, in fact, contributed to the growth of grunge, influencing bands like Pearl Jam."