I suspect you need a different measure for the vocals, as opposed “music” itself.

The sounds other than vocal part of Dr Dre’s album probably wouldn’t really stand on their own and much is quite repetitive (as noted in the study).

Led Zeppelin Immigrant Song can definitely be enjoyed without the vocals, though the vocals really make it recognizable.

Similarly, there are quite a few rock songs that have been made into pretty interesting orchestra pieces.

Would be interesting to see if there any hip hop masterpieces that have been arranged for classical music.