Shuffle Play is a music play mode in which songs are played in a random order that is decided for all tracks at once. It is usually found on CD players, digital audio players and multimedia playback software. Random playback prevents repeated tracks, which distinguishes it from random play, in which the next track is chosen randomly after the end of the last track.
In a CD player, it is possible to mix only songs on this CD or, with some models that may contain more than one CD, to mix the songs on all these CDs. Some CDs have been designed for random play on CD players, such as the Apollo 18 from They Might Be Giants. More modern CD players have the shuffle function.
Almost all software on computers have the feature of random play, including Windows Media Player and MediaMonkey. Most electronic devices, including mobile phones and iPods, have the shuffle function and even devices have been created for shuffle only, such as Apple’s iPod Shuffle. Media devices and players can usually mix more than just albums: they can also mix all the music of an artist, all the music of a certain genre and even all the songs on the device. Users can also create playlists of all the songs they like and mix them up.