On this episode of The ETCs, KD and Eddie are joined by famed engineer Derek "MixedByAli" Ali, who details his self-taught journey through the music industry. He talks about what he learned through his early sessions with Kendrick Lamar, Schoolboy Q, and Top Dawg Entertainment, as well as his work with Summer Walker and SZA. He also details his work and personal relationship with late greats Nipsey Hussle and Mac Miller. Plus, he answers the question: To Pimp A Butterfly or Good Kid, M.A.A.D. City?