The Second Doctor plays Twinkle Twinkle Little Star, much to the Third Doctor's chagrin. (TV: The Three Doctors)
"Twinkle Twinkle Little Star" was a song that the Second Doctor played on his recorder while imprisoned in the Det-Sen Monastery in Tibet in 1935. (TV: The Abominable Snowmen) He played it again after being plucked into the Third Doctor's timeline by the Time Lords. The Third Doctor was not pleased by this music. (TV: The Three Doctors)
The Eighth Doctor also played the tune. (PROSE: The Taint)
