Hi,
This is part 2 of using Chords to play ii V I
Instead of playing Dm7 G7 Cmaj7 which is ii V I,
for the minor ii V i, try Dm7(b5) G7 Cm7.
This is how a Dm7(b5) looks like on a 4 string bass.
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I love the sound, hope you like it too.
Cheers