2. Portishead, 'Dummy'
This noirish 1994 LP sounds especially good around 4:20 because few producers have paid such obsessive attention to detail as Portishead's Geoff Barrow. Vocalist Beth Gibbons' cold-water siren songs could induce melancholic inner gazing all by themselves. Barrow, meanwhile, worries over every beat and sample till they reach maximum bloom, transforming the songs into set pieces from a spy movie ("Sour Times") or near-burying them in hip-hop dub ("Wandering Star"), and always leaving you craving more.