Biography
1) Urthona are a japanese math rock/post-rock/instrumental band.
http://www.myspace.com/urthona2
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2) Urthona are a drone metal band hailing from Britain. They have released two albums: "i refute it thus" in 2008 and Amid Devonia's Alps in 2009. See Urthona (UK)
Biography text from Last.fm, available under CC BY-SA.