The TVTropes Trope Finder is where you can come to ask questions like "Do we have this one?" and "What's the trope about...?" Trying to rediscover a long lost show or other medium but need a little help? Head to Media Finder and try your luck there. Want to propose a new trope? You should be over at the Trope Launch Pad.
We have an index at Music Tropes that lists the various types of music. It includes music used in movies and television.
I think "covers" are supposed to be different arrangements of the original song, aren't they? The perception of *how* different a song sounds would be an Audience Reaction trope.
Edited by PCDWhen you say "seems like another genre", what if it is another genre entirely? That would seem to be In the Style of which has its own InTheStyleOf.Music page about cross-genre covers.
Edited by KD

Is this a trope? Example: The original version of "Setting Sun" (by Oasis) vs the The Chemical Brothers version