The requinto jarocho is shaped like a guitar with a small body. The body, neck and tuning head is made from one piece of wood. It has a shallow body, and a slightly raised fingerboard. It also has 12 frets.1
The four-stringed requinto jarocho can follow the standard tuning of (ADGc), but is also commonly tuned to GADg and CDGc.2 The five-stringed requinto, however, adds a string above the standard tuning 5 half-steps below the initial first string, making it EADGc.3
The requinto jarocho strings are made of nylon; when played it sounds like the bottom four strings of a classical guitar.
"Atlas of Plucked Instruments". http://www.atlasofpluckedinstruments.com/n_america.htm ↩