Songs of Freedom and Captivity

Song of Freedom is an original composition by Murray Gold which was first heard in the Series 4 episode Planet of the Ood. In that episode it was sung by the Ood.

In Journey's End a full orchestral version with non-English choir vocals was heard during the sequence in which the Tenth Doctor and his companions use the TARDIS to restore the Earth to its original location.

Both versions of "Song of Freedom" are included in the Series 4 soundtrack CD issued in late 2008; the Planet of the Ood version as part of a medley entitled "Songs of Captivity and Freedom", and the Journey's End version on its own. In his liner notes Gold indicates that the arrangement used for Journey's End was influenced by the famous John Lennon recording "Give Peace a Chance."