[JoelP2600]

I've got a friend of mine who wants to order a CD with a song which is just the music so she can sing along with it. (I don't recall the song).. But she want's to know what Key she sings in..

I believe this is possible.. I've found songs in D and A are easiest for my self.

Any hints on figuring this out for her??
I can play guitar and shift the key of songs around until I hit it right... Is that what you'd do??