The provided article text does not contain any actual content — it consists only of website navigation elements (menu items such as "Music", "Film", "Travel", "Art", "News", "Shop", "Mailing List") and a "Cover Story | Yard Act" tag, with no body text describing the song, the artist, or Jack Black's comments. As a result, there is no substantive information available to summarise about the "most powerful" 1979 narrative-driven song referenced in the headline.

To provide an accurate summary, the full article text would need to be supplied, as the current extract appears to be a failed or incomplete scrape of the Far Out Magazine webpage rather than the actual news content.