Woo. As an audiophilic fanfiction writer, this interests me highly. I haven't read the Tumblr, so excuse me if this was addressed, but what about remixes? Would that be Alternative Character Interpretation, Character Derailment, or Mary Sue? Perhaps that would depend on how it was handled- after all, these things are up in the air themselves, and so are remixes- either you love it or you hate it, just like with those character conventions, you either consider them acceptable or unacceptable. (Sad that Mary Sues are acceptable, but that's just how it is. That's why this site exists, after all.)

Or remixes could also be like the Seventh Sanctum generators where it's like "your favorite characters if they were like this" or "if they were in this setting".

But if we consider the evolution of, say, the Doctor Who theme, what does that make it? Tone shift? Re-branding?


Anyhoo, since this appears to be a fan-music thread, allow me to plug a few favourites.