Alarm for Transitions
When setting up a "period", have an option to automatically play a transition sound/song. Choose from a variety of transitions sounds or import a music play list to have transitions sound through the computer sound system at transition times. Additional Options: a setting for how long the sound plays, progression of sound (starts low and slowly gets louder), button to stop sound if needed after it begins (teacher or guest may still be speaking to class).
This would be awesome!