Ut queant laxis

Templum musicae

Robert Fludd

Recentiorum hexachorda cum antiquorum tetrachordis

Francisco Salinas

Nomi Moderni ed Antichi

Gioseffo Zarlino

Nine hexachords

Domingo Marcos Durán

Musical wheel

Domingo Marcos Durán

Lilium Musice Plane

Michael Keinspeck

Hexachords of plainchant

Domingo Marcos Durán

Hexachords of musica ficta

Domingo Marcos Durán

Hexachords

Henricus Loriti Glareanus

Hexachords

Walter Odington

Hexachords

René Descartes