The harp is a multi-string musical instrument which has the plane of its strings positioned perpendicularly to the soundboard. Organologically, it is in the general category of chordophones (stringed instruments) and has its own sub category (the harps). All harps have a neck, resonator and strings. Some, known as frame harps, also have a pillar; those without the pillar are referred to as open harps.
These instruments also belong into this category: Lyre (a smaller harp-like instrument) , Konghou (Chinese harp. In Japanese it is called "Kugo"), Chang (Persian).