Overture

Two Castlevania tracks are called Overture but they're different :
 * Castlevania III: Dracula's Curse's song was composed by Konami Kukeiha Club. It appears in the Castle Keep Level and Dracula's battle. It has been arranaged for Castlevania: Portrait of Ruin.
 * Castlevania: Dracula X's song was composed by Konami Kukeiha Club. It plays during the Prologue, when you fight Death for the first time.