Ruckers: Disposición original de los teclados.

Original Arrangement

standard Ruckers double harpsichord:
upper manual C/E-c3
lower manual GG/BB-c3, but appears as C/E-f3
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Existing examples:
1637 Ioannes Ruckers - Museo degli Antichi Strumenti Musicali, Rome
1638 Ioannes Ruckers - Russell Collection, University of Edinburgh