Katatonia are a Swedish metal band formed in Stockholm, in 1991 by Jonas Renkse (formerly Lord Seth) and Anders Nyström (formerly Blakkheim). The early Katatonia albums are noted for the overall melancholy of their sound, often giving them the classification of doom metal or dark metal. Katatonia's more recent albums have progressed to a wider sound, with modern overtones, dropped guitars, symphonic synths and arrangements, alternative sounds and generally heavier riffs.Opeth's Mikael Åkerfeldt