Akio Obuchi-j

Fretted Clavichord

Size：1164mmW x 341mmD x 115mmH w/o cover and case moldings.

Reference：
Drawings by Felix Wolff 1980
Drawing by Robin Blanton 2001

Model：　Anders Wahlstrom 1752
The compass of the original clavichord, C to c3, is expanded to C to d3 by fretting and no string pair is added.

Compass:　C/E-c'''

Size: 1237mmW x 230(318)mmD x 139mmH

Reference:
Drawings by Ute Singer, 2007 for a similar instrument, Henkel cat. no. 2　1540.
Page 56 to 62 of The Clavichord by Bernard Brauchli.

Model:　Leipzig Henkel cat. No.3　1540
Earliest extant clavichord, kept at Leipzig University Musical Instrument Museum. Repertoire is limited to the pieces of this period, as some of the notes are 4-fretted.

Compass:　GG-d'''

Size:1268mmW x375mmD x 85mmH
Reference: Drawings by Ute Singer, 1976
Model:　Johann Jacob Donat, 1700

The original compass of C to c''' is extended to GG to d'''. GG is located next left to C and AA/HH are on the back of the split sharp keys of C#/Eb. The sound board bridge stretches very close to the spine and the sound board is sandwiched between the bridge and the liner. It seems to effectively contribute to nicely spread the high frequency sound energy to whole body of the instrument.

Compass: C - f'''

Size: 1295mmW x 365mmD x 116mmH
Reference: Drawings by Richard N. Loucks, 1981

Model: Christian Gottlob Hubert, 1784
Presently, four clavichords made by C. G. Hubert in 1784 are found (K. Vermaiji). The original instrument, on which this replica was made, is the one kept in Edinburgh. Other three clavichords made in the same year are also fretted type, but all of them have the compass of C to g'''. There are no stabilizing braces on the baseboard. which are often seen in similar type of instruments.

Unfretted Clavichord
Model：　Johan David Gerstenberg 1760
Compass：　C-e'''

Size： Upper manual instrument 1482mm X 423mm X 110mm
　　　　　 Lower manual instrument 1482mm X 423mm X 156mm
　　　　　 Pedal instrument 2260mm X 482mm X 196mm

Reference： Drawings by Joel Speerstra
　　　　　　　　Göteborg 1995 Pedal Clavichord Part One: The Making of the Copy by John Barnes

On making this replica instrument, I would like to express special gratitude to Mr. Markus Brosig at the Leipzig GRASSI Musical Instruments Museum for arranging opportunities to closely study the original instreuments.