please help my find an audio program!

ok here it goes (i know this is getting annoying) my dad wants to sing a song for his moms (my grandmas) birthday. he's already downloaded the karaoki song (i know its not spelled right).
the problem is that the tone isnt right for him and he needs to get the tune a few notes down so he can sing it clearly. iv'v searched my *** off and i just can not find a proggy that can do this (prefferably for free) can anyone help me out?

have you tried GoSing ? Its a free Karaoke player. It will allow you to increase the tempo of the song along with changing the Key or tone the song is in.

well i dont really want to change the tempo of the song and i believe u have already found a solution. i was fooling around with the audio editing program that comes with Nero and i found out how to do what i wanted, so i wont be needing any more help but thanks for trying!