I think the terminology good / bad is not correct at all, can not be applied to music

I agree; not only to the music but to all that is considered as art.
For me bad music is one that is sending "wrong" msgs to ppl. Ofc for someone that is not wrong, it is just the way how it should be, but for me, everything that glorifies violence, dangerous behaviors, narcissism, overspending+bragging... is bad music. Actually, it does not have to do much with music itself but with the txt of the songs :) sometimes music in those kind of songs is quite nice :)
My share for today, in line with how this Monday resonated in my head (bang bang klang tupz wieeeow bang ttttcctcc...) is Blue Monday