The banjo is a four-, five- or six-stringed instrument with a piece of animal skin or plastic stretched over a circular frame. Simpler forms of the instrument were fashioned by Africans in Colonial America, adapted from several African instruments of similar design.
The banjo is usually associated with country, folk, Irish traditional, and bluegrass music. Historically, the banjo occupied a central place in African American traditional music, before becoming popular in the minstrel shows of the 19th century. In fact, slaves influenced early development of the music that became country and bluegrass, through the introduction of the banjo and the innovation of musical techniques for both the banjo and fiddle. The banjo, with the fiddle, is a mainstay of American old-time music.
Read more about Banjo: History, Technique, Modern Banjo, Five-string Banjo, Four-string Banjos, Six-string Banjos, Banjo Hybrids and Variants