So following this pattern, the chords that are diatonic to the key of C minor are Cm, Ddim, Eb, Fm, Gm, Ab and Bb. Step 5: When you use borrowed chords, all you’re doing is taking chords from ...

Harmonic minor keys are used when writing chords. There is another version of the minor key known as the melodic minor. This is used when writing a melody. Each key signature has two possible keys.