@Caroline,
I assume the OP is asking for a subjective analysis of music, by asking for "Your criteria..."
In a philosophy forum it is natural to want to bend this into a objective analysis as that would be more philosophical to some degree, or should I say that to include the objective with the subjective would be.
So the subjective is without much argument, like saying I like mac and cheese better than pat? de foie gras.
Objectively, any authority on cuisine would laugh out of their chair if one considered, objectively, mac and cheese superior.
What makes it better?
The finese required, the complexity, the time and care put into it.
For me music must satisfy both the objective and subjective to gain a high criteria.
To belabor the food analogy, originality also enters into the subject. But as in fine cuisine, it doesn't mean it has to have no other derivitives, but it can also be the creativity and cleverness of combination.
I find there are higher and lower degrees of originality and inovation.
To say that all music has roots and derivitives really takes away from the amount of creativity that is available. It implies that because of this, Oasis is no more unoriginal than Pink Floyd, or Devo, Talking Heads or the Minutemen.
I think the big problem of why this question is asked more and more, is that those that consider themselves connoisseures, are more and more dissapointed with music.
In the past, we looked for a new sound that amazed us, as something we had never heard before. It was often backed by great talent as well. Lately, we listen and look for such, but find much more obvious derivitives rehashing, and simplicity.
In the past, the music industry had much more to do with the art form, and as the companies were sold to bigger companies that made widgets, or soda, or tennis shoes or whatever. It became more of a business model.
In the past, the talent scouts were more often musicians or at least very knowledgeable of music. I found it a good business model in the long run, even if in the short, it took longer to warm up an audience to new sounds, but Dark Side of the Moon sold more albums than most any in its time, and even though no one would hire Hendrix in the states, he moved to England and found more open minds and with the support of others made his way into immortality.
Unfortunately, mac and cheese and sugary drinks sell more units than filet minon and Ch?teau Latourand so does overly simplistic music, over music with takes more craft to make.
So one can say that a pop hook, played by a seventeen year who picked up a guitar 6 months ago that lacks any natural genius that some musicians who can pick up a guitar and in 6 months outplay their teachers, or those that have played for 10 years, have, is "good" subjectively, but to make an objective criteria that it is good, or should I say great, can be dubious.
I think for me the troubling thing is that the increasing fascination with simplicity, emotion, and familiarity, indicates a decreasing intelectual appreciation for things, closed mindedness and general laziness for anything that isn't instantly gratifying.
Most of the music that I consider the best, I didn't like when I first heard it, and I took a long time to develope an appreciation for it.
Fewer and fewer people seem to want to be challenged, artistically today as apposed to in the past.