Make sure Ballade is correctly instaled and working. And that is connected to a real or virtual instrument.
1. Select the arrow tool.
2. Select the "show in score" tool
3. Choose the chord root note.
4. Choose the chord type.
5. Click on the loudspeaker icon to hear the chord.
6. Choose the chord/note duration.
You can click on the red arrows/triangles to make chord inversions!
... and then click on the"return" icon (the one down the loudspeaker icon ) to insert the chord on the score.
You can repeat the same procedure to insert so many chords as you want (chord progression) and hear how it goes...