For a four string banjo, it is recommended to use a medium gauge string set, which typically includes a.010,.012,.016, and.024 string. Nylon strings are often used for banjos, though other materials may be used as well.

For a 4-string banjo, the strings should be strung in the order of: 4th string, 3rd string, 2nd string, and 1st string. Starting with the 4th string, the strings should be tightened in sequence, starting from the thinnest gauge string to the thickest.

4 string banjos obviously have only 4 strings. It has a narrower neck and 22 frets. The scale is shorter than the instrument with 5 strings, so the tone level is lower. On this type, music is often played with a flat pick, and also strummed like a guitar. Musicians often use the banjo with 4 strings as a rhythmic musical instrument.