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.
Black Sheep Hit: "Dust in the Wind" is not particularly indicative of their style, nor is "Carry On Wayward Son" (mostly because of lack of violins.)
Signature Song: Initially "Dust in the Wind," but it's since been displaced by "Carry On Wayward Son".