English: Keyboards of the Halberstadt organ, from Praetorius' Syntagma Musicum (1619)
Headings = Top: "The First and Second: treble-piano", Middle: "The Third: piano", Bottom: "The Fourth: pedal piano".
Top (seven plus five) = ♮ CC♯DD♯E FF♯GG♯ABH
Middle (seven plus four) = ♮ CC♯DD♯E FF♯GG♯A H
Bottom (seven plus four) = Unmarked
Footer = "Which are the manual and pedal-piano, as even in the great organ in the Cathedral of Halberstad: lie one above the other" (Fußzeile: "Die sind die Manual-und Pedal-Clavier, wie die in der gar grossen Orgel im Dom zu Halberstad: uber einander liegen")
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== Summary == {{Information |Description = {{en|1=keyboards of the Halberstadt organ, from Praetorius' ''Syntagma Musicum'' (1619)<br/> *Headings = Top: "The First and Second: treble-piano", Middle: "The Third: piano", Bottom: "The Fourth: pedal pi...