This is Gallifrey: Our Childhood, Our Home

"" was a piece of music written by Murray Gold for Doctor Who. It appeared throughout the series 3 finale, Utopia/The Sound of Drums/Last of the Time Lords. It was rearranged for The Doctor's Daughter and The End of Time. Another rearrangement plays in The Name of the Doctor.

Doctor Who

 * Utopia
 * The Tenth Doctor meets Professor Yana
 * The Doctor fixes Yana's machine
 * Yana tells the Doctor about his alleged childhood
 * Yana begins regaining his memories of his true identity
 * The Sound of Drums
 * The Doctor, Martha Jones, and Jack Harkness run for their lives
 * The Doctor describes Gallifrey and the source of the Master's insanity
 * Last of the Time Lords
 * The Master dies in the Doctor's arms and refuses to regenerate
 * The Doctor's Daughter
 * The Doctor describes how Gallifrey was destroyed in the Last Great Time War
 * The End of Time
 * The Master talks to the Tenth Doctor about their childhood's on Gallifrey and what they have become.
 * Rassilon and the Time Lords meet on Gallifrey to discuss the war
 * The Name of the Doctor
 * The First Doctor steals the TARDIS on Gallifrey and runs into Clara Oswald. Clara encounters multiple other incarnations of the Doctor
 * Clara tells the Eleventh Doctor about the message she received regarding Trenzalore