Martin Codax or Codaz, MartÃn Codax or Martim Codax was a Galician medieval joglar, possibly from Vigo, Galicia in present-day Spain. He may have been active during the middle of the thirteenth century, judging from scriptological analysis. He is one of only two out of a total of 88 authors of cantigas d'amigo who used only the archaic strophic form aaB. He employed an archaic rhyme scheme whereby i~o / a~o were used in alternating strophes. In addition Martin Codax consistently utilised a strict parallelistic technique known as leixa-pren. From Wikipedia