Music from the 1950s to the present has been a rebellious, youth-influenced form of expression against borders and limits. It began as rock-and-roll, rebelling against social norms, and later split into genres like protest rock and punk that rebelled against issues like war and economic struggles. While initially rejected, its popularity grew as the youth adopted it. Over time, as music evolved and society became more accepting of it, Canada shifted from a conservative to a more liberal and tolerant society.