Assertion: clavichord's key | /r/HasProperty | intended for enharmonic keyboard
Facets:
Source sentences:
text: Other contemporary works include the treatise Exemplarische Organisten-Probe (1719) by Johann Mattheson (1681–1764), which included 48 figured bass exercises in all keys, Partien auf das Clavier (1718) by Christoph Graupner (1683–1760) with eight suites in successive keys, and Friedrich Suppig's Fantasia from Labyrinthus Musicus (1722), a long and formulaic sectional composition ranging through all 24 keys which was intended for an enharmonic keyboard with 31 notes per octave and pure major thirds.