India, Feb. 13 -- Now that Fargo, the engrossing TV series, exists as a complete five-season work (with Season 6 a distant hope), it felt like the right time to revisit the entire show. So that's exactly what I did recently, binge-watching all five seasons with my partner, who was watching creator Noah Hawley's anthology for the first time.

Freed from the anxieties of plot, since I already knew which characters would survive the bloodbath and which schemes would unravel, I found myself paying closer attention to something I'd only half-registered the first time around: the music.

What a good idea that was. Fargo, it turns out, is that rare series that rewards a second viewing not for plot twists one missed, but for the details buried in...