Throughout history lutes have typically had gut strings. Lute strings today, however, are nylon made with high precision instruments. The rectified nylon strings in the set are known for their warmer tone and lightly textured feel. The silverplated copper wound nylon bass strings also produce a very warm, classical tone. We recommend the traditional Renaissance tuning for this set. Tuning and String Gauges1:G.0180.46Nylon2:D.0220.56Nylon3:D.0220.56Nylon4:A.0270.69Nylon5:A.0270.69Nylon6:F.0320.81Nylon7:F.0320.81Nylon8:C.025w0.64Silver9:C.0280.71Nylon*10:G.030w0.76Silver11:G.0280.71Nylon*12:F.035w0.89Silver13:F.0330.84Nylon*14:D.040w1.02Silver15:D.0380.97Nylon* Made in USA