"Ride of the Valkyries"
From Tardis Wiki, the free Doctor Who reference
"Ride of the Valkyries" was a well-known work by Richard Wagner.
Ride of the Valkyries played on De Flores' gramophone. (TV: Silver Nemesis [+]Loading...["Silver Nemesis (TV story)"])
Iris Wildthyme once played a loud disco version of "Ride of the Valkyries" to help her concentrate while driving. (PROSE: Scream in Blue [+]Loading...["Scream in Blue (short story)"])
