These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Ear Worm: The loop from "Ghost Rider" will never leave your head. Ever.
Epic Riff: "Ghost Rider", "Rocket USA", "Johnny," etc. Endless repetition guarantees you won't forget them soon.
Nightmare Fuel: "Frankie Teardrop" definitely qualifies. The two-note riff distorting slightly as it goes on (for ten minutes) is bad enough, but when Alan Vega starts letting out those blood-curdling screams? Some have called this song one of the most frightening songs of all time.