Every scale, every key. Use the reference chart to find a scale map, then pick a track and put it under your hands.
The Practice Workbook's Scale Mapping 1 section is the drill for this chapter. Both files are below.
G Lydian Backing Track
G 12-Bar Blues Backing Track
A Ukrainian Dorian Backing Track
C 12-Bar Minor Blues Backing Track
C 12-Bar Blues Backing Track
F♯ Mixolydian Backing Track
D♭ Aeolian Backing Track
E♭ Dorian Backing Track
C Major Blues Backing Track
G Ionian Backing Track
C Aeolian Backing Track
Groove
D♭ 12-Bar Blues Backing Track
E 12-Bar Blues Backing Track
C Mixolydian Backing Track
D♭ Mixolydian Backing Track
A Phrygian Backing Track
B♭ Lydian Backing Track
E Major Blues Backing Track
E♭ Locrian Backing Track
F 12-Bar Blues Backing Track
B Dorian Backing Track
A Melodic Minor Backing Track
A Harmonic Minor Backing Track
D♭ Dorian Backing Track
E♭ Minor Blues Backing Track
A Dorian Backing Track
B Harmonic Minor Backing Track
G Major Blues Backing Track
A Aeolian Backing Track
C Ionian Backing Track
A♭ Ionian Backing Track
F♯ Aeolian Backing Track
A♭ Lydian Backing Track
E Ionian Backing Track
E Minor Blues Backing Track
C Lydian Backing Track
F♯ Ionian Backing Track