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Along with other bands like Immortal,Impaled Nazarene, Mayhem and Darthrone, a new generation of death/black metal bands was born and started to conquer the underground scene. Nödtveidt always had a deep interest in the occult and Satanism, which became important part in Dissection's music. John Zweetslot joined as second guitar player, and the line-up released the EP Into Infinite Obscurity in 1991. Inspired by bands like Celtic Frost and Possessed, Dissection created their own form of dark music, which was labeled as "black metal" later in their career. From the beginning, Dissection was something special, as they highlighted a very dark and occult way of playing aggressive death metal. Jon Nödtveidt (vocals & guitar), Peter Palmdahl(bass) and Ole Öhmann (drums) quickly recorded the legendary 3-song demo Thy Grief Prophecy.
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