I was thinking I want to share incase other people like this too, and got their own list.
'm gonna list some bands here and type a bit what kind of a band is it. In the end I'll post mixed stuff.
First I'll post the bands name, then what kind of a band is it. They have lots of different kinds of songs. So dont just listen to one song from then and then say "theyre shit". I dont like all of their songs either. But the few songs I do like makes me like the band.
You can find most/all of them from youtube.
Onmyouza - its a rock(ish) kind of band and sounds a bit like metal. Has a female+male singers.
GUARDIAN HACKER - more rockish kinda band than the previous one. With a female singer of course.
RAMPANT - more metallish band or maybe punk. With a female singer ofc I like this band alot.
Dazzle Vision - Rock type. One of my favourite "finds" from this year. I love this band and their sound.
Asuka Hinoi - pop band. with young jap girl singers. Theyr music is kinda "energetic" so I like listening to them sometimes.
Ayumi Hamasaki (Ayu) - Jap techno maker. Has alot awesome songs. Try this guy out definately if you havnt and like techno etc stuff.
Tamaki Nami - rock band With a female singer. Its not as "hard" as the previous rock/metal bands I listed. Might know this band from D gray man anime.
mutyumu - umm very mixed feelings about this band. Some kind of screamo with mixed opera singing. But anyway I like it anyway!
Kashiwa Daisuke - very relaxing and beautifull music. Could say its "light techno" or even classical music.
Onitsuka Chihiro (?????) - Awesome all kinds of music from her. She has got "classical" type. A bit rockish/country. I love this girl!
MELL - Some kind of umm metal/techno mix stuff. But good stuff anyway!
blood stain child - metal/rock/screamo band. Has a few awesome songs! Maybe you know the song "Freedom" from them.
Amano Tsukiko - Oh my god, this japanese diva makes awesome rock/metal music. I've got almost all of her songs, and like/love almost all of the songs.
Maximum The Hormone - Metal band, prolly know this band from the anime "Death Note". Good stuff.
Hitomi Kuroishi - I only got 1 song from this guy (Continued Story), and its the ending song from Code Geass R2, very touching.
Kawada mami - Rock/metal band with a female singer. Good stuff, prolly know this from the anime "ShakuGan No Shana"
Chiaki Ishikawa - Has a theme from some anime (Uninstall) I cant remember now But light rock music. Worth checking out
Then as the last but the best!
HeavensDust - My favourite J-rock/metal/something band! Found this a few years back I think. And fall in love with their music straight away!
They have the idea of taking the soul of Japanese traditional music and combining with a Western, modern sound.
Then some random stuff:
Full metal alchemist song: Fullmetal Alchemist Brotherhood ED 2
This guy is Korean, but non the less his rapping is amazing, find this on youtube!
Outsider - Alone. That song has good rythmed lyrics and some classical elements in it too, prolly why I like it so much! I believe he is the worlds fastest rapper too.
Edit.
I almost forgot that all the
Nana anime music is awesome, lemme link one song as example:
http://www.youtube.com/watch?v=I4ssWC_5djw
