Occasionally lead weights can be installed to give more resistance to the keys. Back To This Question Go To Top of Page 28. Replacement strings are readily available. There is a break-in period with new strings, since they go out of tune frequently due to their elasticity. Back To This Question Go To Top of Page 29.
Manufacturers usually recommend a slightly damp soft cloth.
If there is much grease, use a little lemon oil on the cloth. Back To This Question Go To Top of Page 30. Around the turn of the century there were only 2 pedals, normally. Then the sostenuto pedal was invented, primarily for the grand piano. It's very expensive and rarely seen in upright pianos.