What makes Another Brick in the Wall (Part II) b/w One of My Turns by Pink Floyd notable?

'Another Brick in the Wall, Part II' became an anthem against rigid educational systems, topping charts worldwide and sparking significant cultural dialogue. It is particularly notable for its incorporation of children's choir vocals, which challenged conventional rock norms and contributed to Pink Floyd's legacy as progressive artists. By 1979, Pink Floyd had reached a critical point in their career following the monumental success of 'The Dark Side of the Moon' (1973). This single, part of their rock opera 'The Wall', marked their shift into more conceptual storytelling and elaborate production techniques, as they delved deeper into themes of isolation and critique of institutional authority.