You Should hear the notes, IF YOU TURN THAT OPTION ON. I do nt know if you know that, or how, so I will try to explain.
Go the upper right corner, see MENU. "Left Click| on MENU to get drop down list. Seven down see PLAYBACK,
Left Click on PLAYBACK for further menu. ABout six deep in that pulldown menu see PLAY NOTE AT PLACEMENT. Left click to select. Scroll over PLAYBACK and see your option checked. Notes should now sound at placement.
If notes do not sound now, it is a software OS issue, sorry. I really do not think Crescendo is well supported.