Sebald Heyden

Sebald Heyden was a German musicologist, cantor, theologian, hymn-writer and religious poet. A member of the Haiden family of Nuremberg, he is perhaps best known for his De arte canendi which is considered to have had a major impact on scholarship and the teaching of singing to young boys. He wrote hymns such as "O Mensch, bewein dein Sünde groß". It has been speculated that Heyden was the world's first true musicologist.