Mustis is a keyboardist for the great Norwegian symphonic black metal band Dimmu Borgir. His real name is Øyvind Johan Mustaparta and was born on September 10,1979. Mustis first joined Dimmu Borgir in 1998. His keyboards brought a new melodic element to the dark and evil sound that Dimmu possess. Mustis and Shagrath were friends prior to mustis joining the band. His first live performance was at Dynamo Open Air in the same year. His works with the band include
Spiritual Black Dimensions in 1999, Puritanical Euphoric Misanthropia in 2001, Death Cult Armageddon in 2003, Stormblast reissued in 2005, and In Sorte Diaboli in 2007.The equipment he uses are Korg X5d, Korg Triton, Korg Trinity, and Korg Z1..
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