There are a lot of bands on the modern metal-scene both stereotype and exceeding the limits of traditional stylistics. Katatonia is one of the few examples of how definitely heavy style band makes music where you can hear everything: dark, doom, black, gothic, death, but cannot confidently refer to any of these styles. Katatonia releases, nevermind full-length albums or just EPs, so dissimililar one from another, are prominent with progressive instrumental work, vocal parts, trick effects and the whole conception...
All official Katatonia releases are given below. Here you can read lyrics and some information about albums.
t a b s - you can find guitar tabs of some songs.
s a m p l e s - listen to samples taken from releases of different periods to understand better.