A funny example of this I came across recently. There's a video game called Sonic Chronicles--just before it was completed, the developers were prevented from

A funny example of this I came across recently. There's a video game called Sonic Chronicles--just before it was completed, the developers were prevented from using the soundtrack they had made and were forced to recompose new songs for the entire game for reasons that remain murky. The result are some almost incomprehensible pieces of minimally instrumentated MIDI music like [this](https://www.youtube.com/watch?v=6o47N-aYd08 https://www.youtube.com/watch?v=6o47N-aYd08). Yet despite sounding like complete ass, those songs were actually lifted from previous Sonic games, where they sound [completely different](https://www.youtube.com/watch?v=t4-DQ4hGRJo https://www.youtube.com/watch?v=t4-DQ4hGRJo) despite being structurally identical.