There are exactly two different kinds of music - good music and bad music. What makes music good or bad is left up to the individual - everybody has different opinions.
I'm 62, from a small town in Alabama, a child in the fifties, high school in the late sixties, college in the early seventies, and guess what? I like it all! From classical to the latest, there's good to be found (and a LOT of crap). There's even good and bad music from the same artist, e.g. Eric Clapton early was great, but kinda lame later.
I usually listen to music played randomly from my collection. You could hear an old bluegrass song followed by Nirvana followed by Bach followed by a gospel song followed by a Disney tune. The only thing all the songs have in common is that they're only the good ones.
On the road I listen to XM. The presets are Symphony Hall, Met opera, Lithium, Classic Rewind, Bluegrass Junction, and BB King's Bluesville.