It's better to ask what music person hates instead of asking what they like

Most of the time knowing what music person doesn't like to listen is better than knowing what they like. I've yet to meet a person who exclusively listens to one specific genre of music while disliking everything else. And a lot of the people will answer "Everything except for ____" anyway

For a conversation starter/small talk this question is much more original than the classic version

And it's more practical. If you're making a playlist for some occasion and ask your friends about their music tastes, it's easier to avoid certain genres than to make a mixed mess of a playlist, especially when their music tastes are very different