Harp

A harp was a musical instrument. 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 Rassillon was a key to a secret door in the High Council chambers. A painting beside the harp showed a music score for a piece of music known as "Rassilon's Lament". (PROSE: Blood Harvest)

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)