What makes The Letter U and the Numeral 2 by Negativland notable?

This album is significant for its incisive critique of copyright law, making it a touchstone in discussions about intellectual property in music. Its release led to legal disputes involving major corporations, ultimately affecting how sampling and artistic expression were viewed in the music industry. By 1992, Negativland was already a notable figure in the experimental music scene, having gained attention with their previous releases. 'The Letter U and the Numeral 2' is a follow-up to their controversial album 'Escape from Noise' (1990), further solidifying their reputation for challenging mainstream conventions through sound manipulation and cultural commentary.