Harp

A harp was a musical instrument. It was one of several instruments which the Eighth Doctor could play. (PROSE: The Year of Intelligent Tigers)

Reinette had one in her room in 1744. The Tenth Doctor examined it when he returned to France for a second time. (TV: The Girl in the Fireplace)

The Harp of Rassilon was situated in the High Council chambers. A painting beside the harp showed a music score for a piece of music known as "Rassilon's Lament" that served as a musical key, opening a secret door when played upon the harp. (PROSE: Blood Harvest, TV: The Five Doctors)

The Claw Shansheeth used a type of harp called the Cradle to induce memories, record them, and put Sarah Jane Smith and Josephine Grant into a potentially deadly memory trance. They were interrupted by Clyde Langer. (TV: Death of the Doctor)