プラハ交響楽団
The band Therion were influential in forming the genre through their use of a live orchestra and classical compositional techniques; gradually these elements became a more important part of Therion's music than their death metal roots. Another key early influence was Finnish progressive metal band Waltari's album "Yeah! Yeah! Die! Die! Death Metal Symphony in Deep C". In mid-1996 Rage released "Lingua Mortis", the band's first collaboration with the Prague Symphony Orchestra.