Progressive rock bands emerged in the late 1960s and 1970s, characterized by their complex compositions and experimental sounds. They often blend elements from various genres, including classical, jazz, and psychedelic rock. These bands typically emphasize musicianship, with extended instrumental sections and intricate arrangements. Notable progressive rock bands include Pink Floyd, known for their conceptual albums and elaborate live shows, and Yes, recognized for their virtuosic playing and harmonies. Other influential groups include Genesis and King Crimson, each contributing to the genre's evolution with unique styles and innovative approaches to music.