num_pages: 152
description: Highlights the 50 most influential and important progressive rock bands, past and present, from around the world.
language: English
title: 20th Century Rock & Roll-Progressive Rock
titlecomplete: 20th Century Rock & Roll-Progressive Rock (20th Century Rock and Roll)
genres: Nonfiction, Music
ratings_count: 15
publisher: Collector's Guide Publishing, Inc.