Alonso Mudarra was a Spanish composer of the Renaissance, and also played the vihuela, a guitar-shaped string instrument. He was an innovative composer of instrumental music as well as songs, and was the composer of the earliest surviving music for the guitar.
From Wikipedia (https://en.wikipedia.org/wiki/Alonso_Mudarra) under Creative Commons Attribution CC-BY-SA 3.0 (http://creativecommons.org/licenses/by-sa/3.0/legalcode)