Bass guitar

The bass guitar was a musical instrument.

Vastra claimed that Marcus Aurelius played the bass guitar in a band formed by the Doctor. (TV: Deep Breath)

James O'Meara played the bass for the Common Men. (AUDIO: 1963: Fanfare for the Common Men)

Clifford Banks was the bass player for the 63rd line-up of Pakafroon Wabster. (COMIC: Interstellar Overdrive)

was the bass player in a band consisting of five incarnations of himself. (COMIC: The Abominable Showmen, The Five Masters)