large bass lute, or archlute, developed in Rome about 1600. It was usually about 6 feet (less than 2 m) tall, with a normal lute body. Found on http://www.britannica.com/eb/a-z/c/74
The chitarrone was a long double-necked stringed musical instrument of the lute family, popular in Italy during the 16th century. It had wire strings and two sets of tuning pegs, the lower set having twelve and the higher eight strings attached. Found on http://www.probertencyclopaedia.com/browse/VC.HTM