The mountain dulcimer is a type of stringed instrument that originated in the Appalachian region of the United States. It is also known as the Appalachian dulcimer, the lap dulcimer, or the fretted dulcimer. It has a long, narrow, hollow body with three or four strings that are plucked or strummed with a pick or the fingers. The mountain dulcimer music is usually played on the lap or on a table, and the strings are fretted with a wooden stick or the fingers. The mountain dulcimer produces a sweet, mellow, and distinctive sound that is often associated with folk, bluegrass, and old-time music.