How should I approach this. I'm harmonizing chord melody, where I have a melody (that's obvious) and decenting bass line. I also know the chord I'm starting a phrase, and targer chord where to end it. Those melody and bass gives me two pitches for each chord. I know I have to use chord inversions, and to get all the notes fit I'm likely to have to try between dominant 7, minor 7, major 7 and half-diminished m7b5, maybe put in some 11 or 13 chords, then strip down some voices for the sake of chord fingering.

I'm aware of cadences, and know common chord progressions, jazz: ii-V-I, blues rock I-IV-V and pop I-V-vi-IV. Still, as a first timer, this is somewhat overwhelming.

How should I do the voice leading here? Can I go with leading and passing tones, or will it end up to chaos. Or is it better to try to follow the scale, and use seconcary dominants if the chords in scale don't fit in. At least then it follows some "rules".

Does GT have lessons for extended chord harmonies?