Saturday, February 5, 2011

Piano Restoration

Steinway & Sons Piano Restoration

One of the most common and most important action in piano rebuilding today is the misuse of heavy hammers in vintage Steinway pianos. The hammers were used predominantly Japanese in 1980, are substantially heavier than the current special order Renner Premium Blue hammers that we use for most vintage Steinway and Sons pianos.

It is not unusual for us to see newly restored Steinway piano shares with down-weight measurements 90 grams, and measures to up-weight of only 10 grams. In addition, many technicians will try to compensate these poor performance numbers with the addition of 6, 7, 8 or sometimes even leads to a desperate attempt to improve the touch of the piano. This is futile exercise that only makes the situation worse.

And current specifications call for Sons Steinway piano hammers hanging on the stem at 51 / 8. "Vintage Steinway actions have hammers that hang anywhere from 5" to 51/16 "on the foot. Here, a 1 / 8" difference would be drastic if not corrected properly! In fact, the last couple of octaves above the floor are the most crucial for positioning the hammer. Our hammers are hung according to the best possible sound product, in relation to optimal positioning of the first action plan and stern. "Pre-hung" on shank hammers available from the factory do not work properly in most of the old Steinway and Sons pianos.

For years, the first vintage Steinways, the action parts were dipped in paraffin oil to act as a preservative for wood. This explains the dark color of the vintage Steinway shares. A drawback of the immersion solution is the chemical reaction with the centerpins and all moving parts, resulting in what is known as verdigris. This Verdigris centerpins tires on and heard (the green patina shown in close-up), and results in some parts of slow. This is one of the biggest problems with Steinway pianos. There are no permanent solutions for this condition other than replacing the defective parts with new parts.

All our pianos include Steinway and Sons rebuilt replacement agraffes. Agraffes are brass, and if they were too tight at the factory, which will eventually break. This has sometimes 70 years, but it will happen! However, no new agraffes clean only look nice, but contribute to a better tone in the piano. The steel wire passing through the agraffes is harder than bronze, so that eventually deform the circular holes making them oval.

Together with the replacement of agraffes, bar Cape deposit is necessary to remove the old string grooves, and to make sure that the profile of the bar is in its best shape. This is one of the most overlooked steps in the "wholesale reconstruction plan" to end this industry.

In order to get a feel for the constant action, rebushing keys is a crucial step in the process of restoring a piano. Only the highest quality materials and installation processes felt are used for a perfect result.

Polishing is a piano key covers maintenance necessary to restore luster to both plastic and ivory keys. selection Rouge, polishing wheel selection, and wheel speed are important factors in achieving perfect results.

dip correct key is essential for the pianist to be able to play the softest pianissimo to fortissimo stronger. Key dip can also be set to the preference of a customer to reach the action "feel" they prefer.

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