Most gitterns were depicted as having three or (more commonly) four courses of double strings. There are also references to some five course gitterns in the 16th century. Although there is not much direct information concerning gittern tuning, the later versions were quite possibly tuned in fourths and fifths like the mandore a few decades later. Frets were represented in a few depictions (mainly Italian and German), although apparently absent in most French, Spanish and English depictions. The gittern's sound hole was covered with a rosette (a delicate wood carving or parchment cutting), similar to the lute.