Medieval Worship Wars

Louis Bourgeois was the Cantor for the Church of St. Pierre in the mid- 16th Century. He's the guy who put the Psalms to music -- so common folks could sing in church (before that, only the "God-pros" were allowed to do it.)

Interstingly, he was jailed for a spell, because he had the audacity to change a familiar tune. Talk about worship wars!!