I don't have a definition of Jazz. You're just supposed to know it when you hear it.
I think it's really hard to describe music without alienating somebody.
Everybody has their opinion on what's 'real,' and what's they choose to listen to and their personal preference. Whether they're 2 years old or 200 years old. And people can listen to whatever they want.
I always prefer other people's interpretations over my own, so I'm not very quick to make explicit what exactly a song or record is about.
Music should be judged on what you hear, not what you think you might hear.
The way I feel about music is that there is no right and wrong. Only true and false.
Every one of us has a response of some kind to music, so I don't think it's fair to ever judge what is proper and what's not.
One of the nice things about a favorite pop song is that it's an unconditional truce on judgment and musical snobbery. You like the song because you just do, and there need not be any further criticism.
I don't like to get too specific about lyrics. It places limitations on them, and spoils the listeners' interpretation.