Repairs
Tuning and regulation
Tuning sets the tension of each string; regulation sets the working of the action.
A piano in home use needs at least one tuning a year. With use, felts and cloths compress and the touch becomes uneven; regulation returns each part to its proper measure.
Technical data
| Pitch | A 440 Hz, 442 Hz or as requested |
|---|---|
| Pitch raise | For pianos far below pitch |
| Regulation | Keyboard, hammers, escapement, dampers and pedals |
| Frequency | 1–2 times a year; concert halls, before each performance |
Plan of a grand piano
Enquiries