Viertel Orgel

Viertel Orgel (Ger.: quarter organ), obs. Ger. term for an organ having as its foundation a register of 4′ pitch. The expression was not in use after the mid-18th c. Cf. ganze Orgel, halbe Orgel (90). Halle, Johann Samuel. Werkstätte der heutigen Künste. Vol. 3. Berlin, 1764.