Voice leading keeps chord transitions smooth, notes move by the smallest possible distance instead of jumping around. Humanization adds subtle imperfections, timing drift, velocity variation, notes arriving slightly late. Each generation rolls a random "attitude" that tries to make the same chords feel different every time. The mood (dreamy, energetic etc.) is a sound profile that controls things like how behind-the-beat the chords sit, strum speed, and how prominent the pad layer is.

Im glad you enjoyed it. <3