You've all heard Ganondorf's theme music right? Well I might be hearing things wrong, but in the Metroid Prime trilogy, the theme you hear when fighting Dark Samus sounds very similar to Ganondorf's theme(the first part anyway). I am probably the only one who has noticed this. Its not really a big deal, just thought I'd bring it up. 8)
That can happen a lot with songs. Like how Nickelback and 3 Doors Down sound a lot like each other in tone, but other songs have a certain line of notes that sound alike because they sound good. Like the "Da dadum dum daaaa!" when it show's something is bad.