Help needed, Opera scene in 50Hz

This is how i fixed the first bit, the actual problem with the Maria scenes is that the script continues regardless of the music. So, if you make your first selection to late the music will be way off.

Or can you make a two option choice window where the player cant press a button to remove the window and instead just use the option that was marked when the text window disappeared? If possible this would give a fixed time to sync to