)) a ballad that uses a piano and synth pad; both are real tracks. When playing a transition where bar #1 = C,C/B and bar #2 = Am7

Two settings would help here. Both are in the song settings dialog, accessed from the song settings button on main screen.

1 ignore slash root except bass. That would turn the synth part into this
C Am7

2 natural arrangement. That would insure that the synth part is allowed to make small modications to the chords if it would lead to a better arrangement,

Have Fun!
Peter Gannon
PG Music Inc.