From the recording Backing and Jam Tracks for Bass Guitar Vol. 7
Grooving over a simple minor chord progression is great fun for bass players. It leaves a lot of freedom to experiment with new ideas and licks. You can even just run a D Dorian Minor scale up and down the fretboard for good practice. This backing tracks also has soul for days and will definitely inspire you to create some great soloing. 94 BPM.
Chords:
||: Dmin | Amin :||