The chords are Dm7, Gm7, Am7, and A7#9 for the turnaround

This track is a standard minor key slow blues i-iv-v progression. The one-four-five is the meat and potatoes of blues rhythms. 

What relates to all:

Since we are in minor key we can instantly consider utilizing D Minor Pentatonic & Blues as one soloing option over all the chords:

                                                                                                                               D Minor Pentatonic & Blues = D, F, G, Ab, A, C

Remember in minor key a minor mode also usually relates to all the chords. That minor mode is usually Aeolian or Dorian.

Since we are in minor key and there is no major IV chord, (it’s a Gm7 iv chord in this jam), we can play D Natural Minor scales or D Aeolian mode, (same as F major), over all the chords:

D Natural Minor, (D Aeolian Mode) = D, E, F, G, A, Bb, C

F Major = F, G, A, Bb, C, D, E

(Same notes – just emphasize the root of the mode, D.)

So play F major scales over all the chords but start on and emphasize the D notes for D Aeolian. Resolve licks to the D notes and hang on some D notes at times to drive home the point that D is the root of the mode, the tonal center. That emphasis on the D notes will produce the Aeolian mode.

Treat each chord as a separate event:

On this track there is lot of time on each chord. That is a perfect scenario for treating each chord as a separate event. Listen closely for the changes and play through the rhythm a few times to get a feel for when the changes happen.

• Over the Dm7 chord try D Minor Pentatonic & Blues, D Natural Minor, (same as F major), D Dorian, (same as C major). For arpeggios try Dm, Dm7, Fmaj7, and Fm7b5. Also try Am Pentatonic and Em Pentatonic over the Dm7 chord.
• Over the Gm7 chord try G Minor Pentatonic & Blues, G Natural Minor, (same as Bb major), G Dorian, (same as F major). For arpeggios try Gm, Gm7, Bbmaj7, and Am7. Also try Am Pentatonic over the Gm7 chord.
• Over the Am7 chord try A Minor Pentatonic & Blues, A Natural Minor, (same as C major), A Dorian, (same as G major). For arpeggios try Am, Am7, Bbmaj7. Also try Bm Pentatonic over the Am7 chord.
• Over the A7#9 turnaround, treat that chord like a minor chord. So all the above A minor devices will work. In general treat most 7#9 chords like minor chords for that bluesy rock sound.