Musical Selections Classical, Standards, Favorite Hymns, Pop/Love Songs, Movie Themes, Broadway Show Tunes, Celtic (Ireland, Scotland, Wales),Christmas About the Celtic Harp The Celtic, or lever harp, is a traditional instrument of the Bristish Isles that predates the modern concert harp. It is an appealing instrument producing rich bell-like tones to add a unique sound to all music played on it. The Celtic Harp is a naturally acoustic instrument, but can be amplified when needed. It can be easily carried and therefore can go where a concert harp cannot.