With Scheduler for iTunes you can create a schedule of iTunes playlists.
The scheduled playlists are automatically played by iTunes at given time.
In addition you can set the volume either at the start point of a playlist or at any time as a scheduled command. Further you can schedule a stop command which does fade out and stop playing iTunes.
Use it at home to play your playlists in multi-rooms at scheduled times, in stores and restaurants to change volume and playlist matching to your customers or for internet radio.
This application is designed to control iTunes 11 only.