Fortepiano by Conrad Graf
1824, Vienna
Serial number 837.
The keybord compass is 6 ½ Oktaven, C₁–f⁴, 4 pedals
Tuning pitch
430 Hz
Action
Viennese action
Four Pedals
una-corda, bassoon, single and double moderator, damping
Serial number 837.
The keybord compass is 6 ½ Oktaven, C₁–f⁴, 4 pedals
Tuning pitch
430 Hz
Action
Viennese action
Four Pedals
una-corda, bassoon, single and double moderator, damping