what is the difference between good and bad music


my friend says rap is bad music. another friend says mahler is a terrible composer.

is it all subjective, i.e., a matter of opinion ? or are there standards which can distinguish good from bad music, however one defines these terms ?

if there are standards, can one specify them or refer me to a source ?
mrtennis
hi evita, do i sound like a philosopher.

i have taught before. my background is psychology, economics and mathematics.

i have become more analytical, relying on logic as i passed my 60th birthday.

i am now 64.

i like discussions, it stimulates my brain and keeps me young.
hi evita, do i sound like a philosopher.
You sound like you appreciate stimulation. I hope we've been of some help in that regard. :-)
What I don't like is intolerance for other folks opinions.
I have no issues with someome slamming and trashing my favorite composers. In fact its a good thing as it reveals some defense mechanism in support of their fav composers.
Example, Beethoven. Have no interest at all in Beethoven, except for a few works that I find acceptable, , but which I never listen to.
The Beethoven club then waits for me to begin showing praise for one of my favorites, then they open an attack.
Just like children.
Or they will open a new round of Beethoven threads so as to lift their god to his rightful status, above lesser compoers. I mean its so immature.
With my dislike for Beethoven, I've have now made myself the enemey. With consequences of being banned from the site.
Bartokfan, You're in jeopardy of being banned because you don't like Beethoven?! Wow!

Now I wonder what would happen to me when they find out I'm bored by Bach and can't stand Berg. :-)