Well, songs have many traits which can't be serialized on a one dimensional scale like "good" and "bad". I wouldn't say it's 'subjective', though. I'd say there are traits to lean to songs being higher quality than others.

It's just, differences in good tastes simply come from which traits people look for.

It's completely subjective. Anyone trying to argue otherwise is out to lunch. Many people liking the same thing and disliking another doesn't make it objective.

I simply don't agree with this. I believe it can objectively be said that Brokencyde is bad music.

Brokencyde subjective
 

Music cannot be objective.

It's completely unfair to say this. I mean, there are a lot of musicians who go through extraneous studies, and excersizes to seek perfection. If the existence of quality didn't exist, it would discredit their efforts entirely.

What's the point of writing "Symphonie Fantasique" when it's subjectively equal to "Baby"?

In 500 years the music will be so advanced that even the best music of today will seem like a pile of crap.

Bold statement
 

I'm probably right.

That's a positive notion, I'll give you that.

Who knows?

Maybe so..

In my opinion, music can be divided into various flavors of everything from crap to coconuts.