Well here's the first backing track.
Each chord lasts for one bar giving us the two chord sequence. 
Try playing a continuous scale exercise over this for the whole track.
||: Gm7 / / / | Bbm7 / / / :||
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          Well here's the first backing track.
Each chord lasts for one bar giving us the two chord sequence. 
Try playing a continuous scale exercise over this for the whole track.
||: Gm7 / / / | Bbm7 / / / :||