Watch the Harmonic Minor: Prereqs online guitar lesson by Chris Buono from Guitar Gym: Triad Chord Scales - Harmonic Minor
The second set of Prerequisites, starting with #2A, follows the logic of the first set, but this time starts the close voiced chord scale in C minor from a 1st inversion C minor chord - aka Cm/Eb - on the top string set. From there you'll boomerang a diatonic harmonized scale in C harmonic minor ascending and descending the neck with not an open string in sight. Also like the Prereq #1A-C trio you'll mosey on down the lower adjacent string sets to kick off #2B and 2C's chord scales starting from neighboring inversions relative to #2A. The order will be as follows: Root position for the 4-3-2 string set and 2nd inversion for the 5-4-3 string set.
Keep close watch on your boomerang vision. Ascend from the I chord in 3/4 playing up to the vii˚ chord where you do a 180 back down the scale to the ii˚ chord where the repeat sign kicks in.
Tempo range: 51bpm-53bpm
Repetitions: 2 reps