Music is very important to your immersion environment. It’s one of the few things you can generally do all day without effecting your other tasks. Here is a band I found out about just recently, give them a shot and see what you think!
The Back Horn is a Japanese band that formed in 1998 in Tokyo, Japan. I hadn’t heard of them till just recently. In fact, I didn’t really hear of them. I happened to really like the music in Be a Man! Samurai School so after the movie I decided to look up information about who did some of the music and that’s how I stumbled upon The Back Horn. In particular, my favorite song from them is Yaiba.
You can read more about the Back Horn over at their Wikipedia page.
I know a lot of you out there have no clue what kind of bands, genres, etc are out there in Japanese, so here is just one band to help find out what your tastes are. If you like this band, you can simply Google for more bands like it! 
