Garage rock is a raw and energetic style of rock and roll that flourished in the mid-1960s, most commonly in the United States and Canada, and has experienced a series of subsequent revivals. The style is frequently characterized by basic chord structures played on electric guitars and other instruments, often distorted through a fuzzbox, as well as sometimes unsophisticated or aggressive lyrics and delivery. Its name derives from the perception that groups were often made up of young amateurs who rehearsed in the family garage, although many were professional.