Okay, so I got the thumbs up from my friend's band to attempt to chart their songs in Rock Band. Actually, the whole album if I'm feeling adventurous.
Right now, all I have is the mp3s of the CD, but I don't think that'll work. I got a "Just tell us what you need, and you'll get it" from them, but don't know what to tell 'em. I don't think I can generate the stems to import into Reaper out of the mp3s, so I'm guessing some sort of source track. What would be the ideal thing I would need, and on the other end, what would be a "Good enough to work" thing that I could use?