The Moonlight Sonata was a celebrated musical piece written by Ludwig van Beethoven.
The Sixth Doctor attempted to play it on the piano before stumbling and giving up, regretting turning down Elton John's lessons. (AUDIO: Project: Lazarus)
The Cyberman Bremm, known to the public as the Silver Turk, played it on the piano at the 1873 Vienna Exposition. His 5 o'clock performance on the 11 September was interrupted by the Eighth Doctor during adagio sostenuto. (AUDIO: The Silver Turk)
The composition played in the 21st century on John Ellis' 1950s radio; John smiled at the tune. (TV: Out of Time)
Bilis Manger played it repetitively to torture his victims, in a plot against the Committee. (AUDIO: Dead Man's Switch)
The music retained its popularity into the 2002nd century. Gorky Sax once listened to the Moonlight Sonata aboard Trear Station to calm himself down after a stressful encounter with his boss Vortia Trear. (AUDIO: The Year After I Died)
Behind the scenes[]
The sonata's first movement, the part heard in all stories cited above.
None of the stories identify the name of the piece, but the famous adagio sostenuto, the first movement of the sonata, is clearly recognisable in each.