Non-canon warning: This article or section contains non-canonical information that is not considered to be an official part of the Legend of Zelda series and should not be considered part of the overall storyline.
Triforce Harp is a weapon and musical instrument used by Sheik in Hyrule Warriors. It is Sheik's Level 3 Harp. Interestingly its overall design is based on the Seal of the Royal Family of Hyrule.
Non-canon warning: Non-canonical information ends here.