D'Addario EJ13 80/20 Bronze Acoustic Guitar Strings, Custom Light, 11-52

80/20 bronze, commonly referred to as brass, is the original acoustic string alloy selected by john d'addario sr. and john d'angelico in the 1930s. 80/20 bronze strings are popular for recording due to their crisp, bold, and projecting tone and appeal to many traditionalists for their historical significance.