Fortepiano by Joseph Brodmann

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1827, Vienna

Teh keybord compass is 6½ octaves, C₁–g⁴, five pedals: una corda, bassoon, moderator, double moderator, damping

Tuning pitch
430 Hz

Action
Viennese action

Five pedals
una-corda, bassoon, single and double moderator, damping

Strings
3 strings per key throughout
String diameters are very precisely written on the soundboard and therefore were used as an indication for the restringing of the instrument.

Case
Mahogany wood

Keyboard
Lower keys: ivory
Upper keys: ebony

Measurements of the instrument
Width including trims: 995 mm
Length including trims: 2140 mm

Restauration
During the restauration at the Laboratorio di restauro del fortepiano di Firenze in 2019, all parts were disassembled after being measured and cataloged.

In piano restoration it is only rarely possible to keep the original leather because it is often too worn out. The original leather of the Brodmann hammers was in very good condition and where possible it has not been replaced. This is one of the main reason for the round and full sound of the piano.

The regulation of the action was studied to reach the best dynamic to favour the musician’s touch.
After restauration, the piano has kept all features belonging to Brodmann’s manufacturing and is a very good example of what was offered in Vienna at that time.