Lodovico Zacconi, Italian composer and theorist (d. 1627)
Lodovico (or Ludovico) Zacconi (11 June 1555 – 23 March 1627) was an Italian composer and musical theorist of the late Renaissance and early Baroque eras. He worked as a singer, theologian, and writer on music in northern Italy and Austria; for a time he was in the employ of Archduke Karl of Graz, and worked in Graz and Vienna.