a form of rock developed in the late sixties that incorporates classical and jazz music elements. in the 70's-80's, it became extremely technical with such bands a Dream Theater. Some of the "epics" of progressive rock are over half an hour long. most guitarists who attempt to play these cry at the site of 40 pages of music and sell there instrument on ebay. progressive rock should not be attempted by the "newb" guitarist.
dream theater is progressive rock, a very technical type.