I just posted a new YouTube video that gives you a 20 minute workout in the key of C Major. It's all in one video to keep it simple. I used the 3's and 7's to give you flexibility on your scale choices, but I usually encourage my students to just focus on the chord tones first.
Track #1: 4 minutes on CM7
Track #2: 4 minutes on Dm7
Track #3: 2 minutes going from CM7 to Dm7 (2 bars each)
Track #4: 4 minutes on G7
Track #5: 2 minutes going from Dm7 to G7 (2 bars each)
Track #6: 2 minutes going from G7 to CM7 (2 bars each)
Track #7: 2 minutes going from Dm7 to G7 to CM7 (1 bar on Dm7 and G7, 2 bars on CM7)
I hope some of you find it helpful.
YouTube - C Major 7, D minor 7, G7: ii-V-I Guitar Jazz Jam Tracks by Susan Palmer