Question: The Dream Chord is a chord, it is made up of which pitches, that is used prominently in the works of La Monte Young, an American avant-garde composer, musician, and artist generally recognized as the first minimalist composer?
Sentence (from "Marian Zazeela"): She was a member of the 1960s New York experimental music collective Theatre of Eternal Music, and is known for her collaborative work with minimalist composer La Monte Young.
Relevant evidence: No