GREG JUNKER'S PIANO SHOPPE

Duplex scaling: Treble strings of a 182 cm. grand piano. From lower left to upper right: dampers, main sounding length of strings, treble bridge, duplex string length, duplex bridge (long bar perpendicular to strings), hitchpins. ear_tuning_fork.jpg  
 

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PIANO FACTS:

 

Most pianos strings exert between 18-20 tons of combined tension.

Today's piano action contains over 10,000 parts.                            

Grand Piano Action

Basic parts of a grand piano action, include: 
A - Key ;  B - Escapement (sticker & whippen);  C - Hammer;  D - Damper;  E - String

 

Vertical Piano Action