"Krautrock" by Faust
One of the masterpieces--along with "Hallogallo", "Halleluwah", and more--of its titular genre, "Krautrock", kicks off as though it's already been going for a few minutes, which is to say it has plenty of driving psych-rock inertia right from the first downbeat. The next eleven minutes and fifty seconds offer more and more, heavier and heavier churning rock n' roll. It shares an aesthetic with drone music, but there's too much movement--wailing guitars, tambourines, etc.--to actually classify the piece as drone itself. There's really only one way to classify this song, and that's as "krautrock".