Boe

 was. . . ''a piece written by Murray Gold. It ca be heard in the series 3 episode Gridlock. A version of the theme plays as The Doctor sees The Face of Boe again in the ruins of the New New York senate.

Episodes used in
''Series 2 (Doctor Who) ''Series 3 (Doctor Who)
 * New Earth (TV story)
 * Gridlock
 * The Last of the Time Lords
 * and a variation is used in Utopia (TV story)''