1. From the home screen, swipe down from the status bar.
   
2. Tap Settings.
   
3. Tap Notifications.
   
4. Tap Applications.
   
5. Tap the desired category.
   Note: For this demonstration, tap 'Reminders'.
   
6. Tap the Sound switch to toggle on or off.
   
7. Tap te Tone field then tap the desired option.