This game was pretty damn good, and one of the songs had that repeating sound of doot-dit-doot. I think it was the level inside the castle. Not to leave out all the other songs, they sounded great as well
No, I don't think that's quite it. This game was for the PS2 and you had to kill many evil soldiers and you got to use a dragon from time to time to wipe out people and things in the air. The weapons had different specials for each different weapon you equipped. Here's some screenshots, minor viewer discrestion is advised lol:
Anywho, that's the game in a nutshell. Awesome game with an awesome soundtrack.