Describe the key differences in playing techniques and tone production between a banjo and a mandolin in a folk music setting.

The banjo and mandolin, while both popular in folk music, exhibit significant differences in playing techniques and tone production due to their construction, tuning, and intended stylistic roles. The banjo, typically featuring a round body with a drumhead and a long neck, produces a brighter, percussive, and ringing tone. Its strings are often made of metal and are relatively far from the fretboard, which influences playing techniques. A common technique is the clawhammer or frailing style, primarily used on the open-back banjo. This involves a downward brushing motion of the fingers followed by a thumb strike on a drone string, producing a rhythmic, driving sound. Another is the three-finger roll often associated with bluegrass, involving a sequence of fingerpicks and thumb strikes. This creates a more continuous and melodic sound. The banjo's tone is inherently bright, with a sharp attack and a relatively quick decay, which often lends itself to rhythm and syncopatio....