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
I am with PCS about being like Albertporter when I grow up. Awesome collection of artists that makes me want to check out the ones in your list that I am not familiar with.
the changeability of personal taste is fascinating: how many times have we pulled out a piece of music we used to love/not love, only to find that our feeling about it has flipped 180 degrees? it makes selling 'unwanted' CDs/LPs a risky proposition indeed...

another interesting note on this subject: some musical instruments (stringed especially) are just naturally louder and have better timbre when they are tuned properly. now how do you explain that? are there preexisting C#s in the universe?

albert: if you are open to Stockhausen, you might try to get your hands on Kim Cascone's 'Blue Cube' or 'Cathode Flower' - very cool computer-generated music by an associate of Angelo Badalamenti (Twin Peaks) or Jon Wall's 'Fractuur' or 'Alterstill' - music constructed of samples of 20th century composers (which doesn't sound sampled at all; it sounds composed and seamless)
Any Psychiatrist would say that what we percieve should be percieved by the vast majority of others for it to be true. This is called the reality check.
Therefore by definition Pop music is good and everything on the fringe of lunacy in terms of preference. I think that the current generation of popular music is mostly unlistenable so I am clearly unable to discern good music from bad, I listen to what makes me happy, even classical which no one listens to anymore (except a few of philes).
Rap is kinda like some sort of coded message that only a few can understand what all the lingo means. I guess they believe rap helps them to understand what the heck is going on in their world, helps that crowd to deal with current issues.
As does classical help me to deal with issues surrounding my life.
Over at gramophone I posted a topic last week: "how much of all classical music do you like?" I figured there are over 5000+ composers in the past 300 yrs, most of which do not have their scores in recorded mediums. Tulane has (had I should say, as I think flood waters from katrina flooded the basement of the library, where the music room is), the book was a encylopedia of sorts , composers past 300 yers.
I have 25 composers represented on my shelf, and have come pretty much an end of cd buying. I have found all the composers I think are interesting.
So thats only 25 composers out of a possible 100 majors, and another 200+ second tier, and then another 4K marginal composers. Thats like 1% of all classical represented on my shelf. I expect little additions, as I've completed my cd collection in classical just last month.
Some of the gramophone group didn't quite like my post.
Good to me means does the music/composer add any meaning to my life.
Not to say Brahms is bad music, just insignificant for me. Thus Brahms gets no shelf space.
How is this an insult to classical tradition?
Have I tarnished the Brahms image?
I got the feeling some european forum members wre a bit upset that an old european standard was under criticism.
As though I failed to pay proper respects to The Classical Tradition Shrines.