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The intarsia clavichord in the Duke's studiolo, in the Palazzo Ducale in Urbino.

A photograph of the part of the studiolo intarsias in the Palazzo Ducale in Urbino showing the famous clavichord

in the lower part of the photograph. This intarsia shows the clavichord in meticulous detail, so that even the tuning

system used in this instrument can be calculated from the spacing of the tangents seen toward the rear of the instrument.

These calculations show accurately that the instrument was tuned in perfect Pythagorean intonation.

The details of these calculations will be shown when the author's paper has been published in the academic press.

This section is temporarily unavailable until its contents have been published, and are accessible normally in the public domain.

The reader of this site should know that, what has been shown here mathematically and scientifically by the author,

is that this intarsia clavichord was designed and made in Fossombrone, a part of the Duchy of Urbino.

The proof of the instrument's origin, with all of the details, will be uploaded here when these are published and are in print.

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Second Part: The intarsia clavichord in Urbino. A new centre of the highest significance to Italian stringed-keyboard instrument design and construction.

What has been shown mathematically and scientifically by the author is that the RCM0001 clavicytherium was made in Urbino.

The proof of the instrument's origin, with all of the details, will be uploaded here when these are published and are in print.

This instrument, although it is only a drawing in wood, is also one of the most elegantly designed keyboard instruments in

the entire history of stringed-keyboard instrument making in Europe. It was designed and built in about 1476 in Urbino,

by the brilliant polymaths working in the Court of Federico da Montefeltro, Duke of Urbino.

In the author's opinion its design, like that of the RCM clavicytherium, has never been superseded

since the time of it's construction, now more than 550 years ago!

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