To add to the list:
29 / The Prince's Despair = Sorrow's Distortion / Castlevania Order of Ecclesia
48 / What About...Charging? = Rhapsody of the Forsaken / Castlevania Order of Ecclesia
I could also swear I heard Evil Invitation from Castlevania Dawn of Sorrow at some points in the game, but I couldn't find it in the sound room, so I might have misremembered.