Emphasize how playing within the group's rules will help him meet those goals. If his main goal in being there is having a power fantasy, then this just isn't the game for him. Video games vs co-op story-telling games - For another example of this, see the "Minecraft example...
In DnD games, music is usually just ambiance—there isn’t a band of NPCs following the party around providing a soundtrack (although that sounds like a fun way to mess with your players)! But this can change in taverns, as bards are really common in this sort of location. Whi...