I have a situation, A friend and I wrote a couple of songs a few years ago, it really wasnt my style of metal, and I never intended anything of it. he joined a band and used the songs and well he has since quit that band, I just got a facebook message from a remaining member telling me that they have a label interest and that the label wants me to sign a waiver for this band to keep things songs as these songs are what drew their interest, should I sign away these song as i was never interested in them anyway?, or should I make them give me credit?