Back سيثوس كالڤيسيوس ARZ Sethus Calvisius German Sethus Calvisius Spanish Sethus Calvisius French Sethus Calvisius Hungarian Sethus Calvisius Italian Sethus Calvisius Latin Sethus Calvisius Dutch Sethus Calvisius NB Sethus Calvisius Polish
Sethus Calvisius or Setho Calvisio, originally Seth Kalwitz (21 February 1556 – 24 November 1615), was a German music theorist, composer, chronologer, astronomer, and teacher of the late Renaissance.