Question: Whose third studio album did an experimental multi-genre music producer, electronic musician, DJ, filmmaker, and rapper from Los Angeles, California help produce?
Sentence (from "To Pimp a Butterfly"): The album incorporates elements of free jazz, funk, soul, spoken word, and the avant-garde and explores a variety of political and personal themes concerning African-American culture, racial inequality, depression, and institutional discrimination.
Relevant evidence: No