rock music of canada is a wide and diverse part of the general music of canada, beginning with american and british style rock and roll in the mid-20th century. since then canada has had a considerable impact on the development of the modern popular music called rock. canada has produced many of the genre's most significant groups and performers, while contributing substantively to the development of the most popular subgenres, which include pop rock, progressive rock, country rock, folk rock, hard rock, punk rock, heavy metal and indie rock.