Mmmm. I think my parents understand what I like about music, they just don't like sad, heavy music. I do though. I'm not really into happy music most of the time.
I guess my parents don't understand most of my music, they don't dislike it per se.
And my friends, most of my friends share at least 50% of my taste.
My ex-girlfriend shared at least 80%. Which is very, very practical
.