Hey Successor! It's Tiamat from the Chapel!
Anyway, if I were to own DXC, my Sound Assign settings would be the following, and no, I don't know the new names for SotN's soundtrack:
Stage 1: Divine Bloodlines
Stage 2: Vampire Killer (DXC)
Stage 2': Cross a Fear (DXC)
Stage 3: Requiem of the Gods
Stage 3': Crystal Teardrops
Stage 4: Dreams of Triumph
Stage 4': Rainbow Cemetary
Stage 5: Picture of a Ghost Ship (DXC)
Stage 5': Red Dawn
Stage 6: Poison Mind (DXC) or Prologue
Stage 7: The Tragic Prince
Final: Prologue
Boss: Festival of Servants
Dracula: Illusionary Dance (DXC)
Is it also possible to change the ending theme? If so, then I'm putting in Serenade of Sympathy.