All the Strange, Strange Creatures

All the Strange, Strange Creatures is a musical piece composed by Murray Gold. It is primarily used in the Trailers for Series 3, hence it's subtitle of 'The Trailer Music'. However, it has appeared in subsequent episodes including:

Series 3: Series 4: Variations of the song have also appeared in the following episodes:
 * Gridlock
 * Daleks in Manhattan,
 * 42
 * The Family of Blood
 * The Sound of Drums
 * The Sontaran Stratagem
 * Turn Left
 * Stolen Earth
 * Journey's End
 * The Waters of Mars
 * The End of Time
 * The Time of the Doctor
 * The Lie of the Land
 * Twice Upon a Time (which is theoretically, it's appearance since Murray Gold has now stepped down as composer for the series)