Ah, the humble banjo, maker of extraordinary sounds and the foundation for many types of folk music. They come in four, five or six-string varieties, and have a thin plastic membrane stretched over the body to create deep resonance and warm tone.
Essentially, banjos are played using very similar techniques to other stringed instruments like guitars, violins and even the ukulele. One hand selects the chords and notes, while the other hand strums the rhythm. Learn some chords and go freestyle or keep it professional by learning from some music books. Having said that, one wonderful thing about folk music is that it was not standardised in the way that the classical tradition was. This folk developed by people picking up their instruments and playing them however they wanted, so don’t be scared to try new things!
To complete your band you'll want to round out the sounds with a robust beat from the drums. Then add some colour to your songs with a brass section filled with trumpets and trombones. The sounds of a New Orleans brass band will soon fill your practice space.