Each concept here is mapped to its prerequisites — the ideas you'd need first to understand it — all the way down to four foundations: Space, Time, Energy, Pattern. Click any prerequisite to drill down, or scroll for the chain graph.
Post-rock is a subgenre of rock music, often instrumental, characterized by its emphasis on rhythm and texture, which are essential components of sound.
External reference — all senses of the word “post-rock” on Wiktionary. This atlas concept maps to only the slice of meaning relevant to the prerequisite graph.