tiamat is a rather versatile swedish band. starting as a death/black metal band, they evolved to a gothic/doom rock/metal band with heavy progressive and/or psychedelic influences, producing a wide range of music which is sometimes not even near to metal anymore.
the second is sumer by night from their album judas christ:
while often playing with such instrumental, almost psychedelic parts, they also play various types of metal. a very easy going song is brighter than the sun from their album skeleton skeletron, which is almost a bit like popular music, wouldn’t it be so dark, so black:
any color you like as long as it’s black
you could have anything if you just give it back
two other songs i like a lot are cain and ten thousand tentacles, next to each other on the album prey. they are best listened to one after another, as ten thousand tentacles is an instrumental continuation of the ending of cain. a very fascinating piece of music.
another song from the same album, the pentagram, with lyrics taken from a poem by aleister crowly, is a very calm song. it’s pretty long, and contains many beautiful instrumental soundscapes.
finally, here’s a track from tiamat‘s newest album, anathemes, called katarraktis apo aima (greek for a waterfall of blood).