Pirkkala based Death Metal. DEPRAVITY issued the 1991 demos 'Depravity' and 'Galvanizer', the latter tape closing with a cover of 'Creatures Of The Night', originally by KISS. Their first commercial product would be the 1992 'Remasquerade' 7" single for French label Adipocere Records. The February 1993 demo 'Phantasmagoria' preceded the album 'Silence Of The Centuries'. DEPRAVITY bassist Petri Ilvespakka subsequently came to the fore with Black Metal band DIABOLI.