I have experienced genuine auditory hallucinations in a state of sleep paralysis between consciousness and unconsciousness after MDMA consumption years back where I was unable to move but fully conscious and I could hear a certain song being played it was literally being played by my own brain's own recorder.
I had that unsettling experience numerous times after fairly heavy binging.
But what I learnt from that is that that we can basically play these songs to ourselves if only we knew how to. And we could make them much better than any stereo setup as well.
It's not so passive as we think these type of experiences and symptoms and phenomena we are just a long way off off mastering it for our own good. God when I think what we are actually capable of we have barely started to scratch the surface really on this dumbed down planet Earth.
But to answer the question at hand yes music CAN be scintillatingly amazing on MDMA. It could be your regular favorite song, album, artist etc.
Or literally anything. But it certainly isn't the case that music is automatically amazing and enjoyable just because you have taken MDMA, like all types of music and every time.
I think always a huge part of it is your mindset and mood and the environment if the environment is positively conducive towards the enjoyment of music that will make the experience incredible and it really can be.