Clavicymbalum universale

Clavicymbalum universale (Lat.), *enharmonic harpsichord seen and described by Praetorius; it was then the property of Carl Luython of Prague, but built some 30 years earlier. It had a 4-oct. compass with 19 tones to the oct. and a total of 77 keys. All accidental keys were split and extra ones were inserted between the E and F, B and C keys. Furthermore, the keyboard could be shifted 7 times. Compass C0-c3 (159). Praetorius, Michael. Syntagma musicum, Parts II, III. 1618, 1619.