1. By default, Dorico will audition only the notes that are selected. This includes clicking with the mouse and navigating with the arrow keys on your computer keyboard.
  2. In Dorico 2.2.20, you can choose to audition all notes in a chord when you select any of them, by setting a new preference.
  3. The setting is found in the Preferences dialog, on the Note Input and Editing page.
  4. Check Play all notes in chord when any is selected.
  5. Apply and Close the dialog.
  6. Now when you select any note in a chord, all notes in that chord will be auditioned. Notes in other voices will not audition.