Technical snapshots
Making a brass flange from scratch since the size was not standard.(Heintzman 1928)
Brass flange completed.
Grinding the metal rods usually located on the plate between the hitch pins and the bridges. Their heights will
adjust the downward pressure(downbearing)of the strings toward the soundboard.
Replacing the heavy wire with wound strings on the
tenor bridge will improve sound and tuning stability.
Improvement in the accoustics of the piano and calculation of an improved scale is done at the same time.
Converting bare wire to wound string comes with drilling the plate to add new hitch pins.
Improving the quality of sound of a baby grand by
replacing plain wire with wound strings on the tenor bridge.
Centering the jacks in the repetition lever window will result in delivering full power to the hammers.