The Welsh harp is a beautiful musical instrument, but did you know that there are several synonyms for it? For starters, it can also be called a Celtic harp, since it has been a traditional instrument of the Celtic people for centuries. Other names for the Welsh harp include the triple harp or the pedal harp, both of which refer to variations of the instrument that use additional strings or levers to produce a wider range of notes. You might also hear it called a folk harp, since it is often played in folk music or a lever harp, referring to the small levers that musicians use to raise or lower the pitch of individual notes.