Guitar
From Tardis Wiki, the free Doctor Who reference
A guitar was a musical instrument that could play chords. (PROSE: The Left-Handed Hummingbird)
George Harrison was the guitarist for the Beatles. (COMIC: Forever Dreaming, PROSE: The Left-Handed Hummingbird)
Trisha Tomorrow played guitar in the band the Tomorrow Twins. (AUDIO: Horror of Glam Rock)
The Twelfth Doctor was skilled at playing an electric guitar. (TV: The Magician's Apprentice, Before the Flood)
