This is the heart of Harmony 3. You are given a progression in a Major key (e.g., C Major), and you must introduce chords "borrowed" from the parallel minor (C Minor).
Consequently, one of the most searched terms by stressed mid-semester students is Berklee Harmony 3 Supplement Answers
Supplement Hint: Many worksheets ask you to write the secondary dominant above a given bass line. Remember: The root of the secondary dominant is a 5th above the chord it resolves to. This is the heart of Harmony 3
Supplement exercises often ask students to identify the source mode (e.g., C Aeolian or C Dorian) for these borrowed structures. 3. Chord Scale Theory Berklee Harmony 3 Supplement Answers