I discovered a really interesting video on Vimeo about the music used in the Marvel Universe films. It hinges on how we remember music and theme tunes from some films and not others. Movies like the James Bond theme, Star Wars, Star Trek etc. are easily recalled (and some times stick in our mind like a bad ear worm). People are asked in the video below about the Marvel theme tunes and are dumbstruck.
To me the most salient point of the video was that "no-one remembers safe choices". I think this applies in many areas of life as well as Marvel movies music content.
The video is about 15 mins long but well worth watching, with headphones. ;-)