It seems you've attracted one of the 'anti-mainstream, obscure music loving' fans as alluded to by Onyx Oblivion.
A majority of my musical library consists of the obscure and criminally underrated, but I'll do my best to single out the MOST underrated of these:
Morphine - http://www.last.fm/music/Morphine
A blend of jazz/blues/rock with charismatic, witty vocals. It's just plain cool music. (They're no longer making music anymore, unfortunately)
Psapp - http://www.last.fm/music/Psapp
A very innovative band straying from conventional instruments and using electronic equipment and toys to produce their sound.
Nick Cave and the Bad Seeds - http://www.last.fm/music/Nick+Cave+and+the+Bad+Seeds
In my opinion, Australia's best lyricist! No more need be said!
Rest assured there are many more I could say...but I won't plague this thread with any more
ALSO, I have to mention quickly the greatest, most innovative beautiful, clever, odd and absolutely unreal artist in the world: BJORK! She is well know, yes, but is not given the respect she deserves. Seriously, she is a genius. have a listen to the album 'Medulla,' that's some convention breaking there! I hold her musical expertise up there among the likes of Frank Zappa etc.