What makes Cancer 4 Cure by El-P notable?

'Cancer 4 Cure' received widespread critical acclaim, debuting at number 50 on the Billboard 200 and being hailed for its innovative sound. It contributed significantly to the rise of independent hip-hop, influencing a generation of artists with its daring production and lyrical depth. By the time 'Cancer 4 Cure' was released in 2012, El-P was firmly established as a leading figure in underground hip-hop, following his critically acclaimed album 'I'll Sleep When You're Dead' from 2007. This release marked his return after a five-year hiatus during which he expanded his influence through production work for other artists and his label, Definitive Jux.