Hello, Im a retired guitar player just now getting back into it and starting a blues band. But before I put a band together I have been practicing but find it hard without a band, I found some online sites where I choose tracks of back up music such as drums bass piano/organ rhythm guitar and so on that I play to (jam with). However these are just basic blues progressions and not actual songs and no vocals. I am wondering if anyone knows of an "accompaniment" or a "karaoke" type site where I can download actual songs and fade out the parts I wish to play. For instance I would leave in the vocals (unlike regular karaoke) and leave in the instruments except the part I wish to play.

Anyone know of such a site? Of course I prefer free, but dont mind paying a small fee if need be.
Any help is appreciated.