Question: On what date was the album that featured the song "Untitled 03 | 05.28.2013." released?
Sentence (from "Untitled Unmastered"): It consists of previously unreleased demos that originated during the recording of Lamar's album "To Pimp a Butterfly" (2015), continuing that work's exploration of politically-charged and psychological themes, as well as its experimentation with free jazz, soul, avant-garde, and funk styles.
Relevant evidence: No