A static backing track to practise over a C melodic minor scale. Pick a feel, put it on, and play.
Seventh-chord vamps8 tracks
CmMaj7
Dm7
Ebmaj7#5
F7
G7
Am7b5
Bm7b5
B7+
What to play over this
Start with the scale itself, then colour it with the chords and modes it contains.
Scales and modes
C Jazz Melodic MinorD Dorian b2Eb Lydian AugmentedF Lydian DominantG Mixolydian b6A Locrian nat2B Altered Scale - Super Locrian