One of the founders of Norwegian 'The 3rd and The Mortal' is drummer Rune Hoemsnes. The band started in 1992 as an atmospheric doom metal act.
Within the ten years that followed, their style musically changed completely and evolved via experimental soundscapes to more compact trippy music with some jazzy elements, losing all touch with doom metal.
The interesting part is that Rune Hoemsnes had to his drumming style evolve too. According to most reviews, he seems to have succeeded very well, meaning Hoemsnes is a drummer with great variety and always serving the songs.