Opening to Hell
Opening to Hell is the song composed by Bobby Prince for Doom II: Hell On Earth (DOS). Throughout the song, a theremin can be heard switching between D E D C while other sinister-sounding instruments and chords join the mix.
Doom II: Hell On Earth (DOS)
Within the DOOM2.WAD file, the song has internal name D_OPENIN.
Doom II: Hell On Earth (GBA)