Hey that's a very good topic!
Cool to see that you all are very open minded concerning different music genres.
So where can i begin?
When we speak of Metal, i like bands like
Abigor(old ones),
Tiamat(old ones),
Dismember
Summoning
Ulver
Kampfar
Sentenced
Borknagar(the first three albums)
My Dying Bride
and above all
Katatonia
Then there are the following bands/songwriters i really like too
Deus(great band imo)
Anywhen(still my no.1 underground advice)
Marcy Playground
Radiohead
Naervaer
Eels
Embrace
Songs:Ohia
The Notwist
Blackmail
Graham Coxon
Damien Jurado
I'm very much into 60/70 style too
Nick Drake
Leonard Cohen
Neil Young
Bob Dylan
Bert Jansch
So these were only a few of the bands i really like. I only have got 1 classic CD which is by Grieg,only piano,very beautiful but i never found the time to really dive into this genre,the same goes with Jazz.
The music has to give me something,a feeling,it has to catch my interest from the beginning,has to move me. Also i have to say that i am mostly into music based on minor keys.