Marxist philosophists would explain this as symptom of capitalism nearing it's end. It is called "culture industry" and it happens when capitalism expands to culture it self. Music looses all it's subjective, deeper spiritual meaning, and is considered as manufactorable object.

Heres a video touching the subject:

There is also channel with good philosophical content:
https://www.youtube.com/channel/UCkS_HP3m9NXOgswVAKbMeJQ