When you're talking about things that you do for entertainment, use the phrase "I'm into ___" For example, if you want to ask someone about their hobbies, it's strange to ask "What are your hobbies?" Instead, I'd ask:

What kind of stuff are you into?

Or, for a more specific question:

What kind of music are you into?

"Get into ___" means to start being into something:

I first got into tennis when I was about eight years old. My sister was on the junior high school tennis team, and I started practicing along with her.