iTunes Control actions allow you to interact with iTunes, playing songs, stopping or pausing, rewinding or fast-forwarding. All actions will launch iTunes if it is not already running. The actions are:
Play a specified song.
Play the songs in a specified Playlist.
Play a random song.
Play a random song from a specified Playlist.
Toggle from playing to pausing or vice-versa.
Pause the current song.
Stop playing any song.
Fast-forward the current song. It will keep fast-forwarding until you do something else or until it reaches the end of the song.
Rewind the current song. It will keep rewinding until you do something else or until it reaches the beginning of the song.
Play the next song.
Go to the previous song or the start of the current song if it is already playing.