For FREE ? I've always liked ACCURADIO, which is a cool FREE internet radio station that has tons of "channels"...want Jazz ? it's there. Metal ? Yep. Blues ? Lots of it ! Well.... Now they've added a channel that's SPECIFICALLY dedicated to playing music with bassists like Mingus, Clarke, Pastorius, etc. You can find it HERE ! Anyway, i'm not affiliated in any way with Accuradio...I just dig what they do and thought I'd share !