Techniques

Two techniques that are closely associated with the banjo are “rolls” and "claw-hammer".  

"Rolls" are right hand finger patterns that consist of eighth notes that divide each measure.  

Example of a "Roll" (Forward Reverse Roll):
http://www.filedropper.com/forwardreverseroll

“Claw-hammer” consists of downwards striking the four main strings while the drone (5^th string)  is played with a lifting motion of the thumb.  Melodies can be quite intricate, adding techniques such as double thumb and drop thumb. Frailing is another word often used instead of clawhammer.

Example of "Clawhammer" style: 
http://www.filedropper.com/claw-hammer