Piano Action (Grand Piano)

(1) Key

(2) Capstan

(3) Wippen

(4) Regulating screw

(5) Jack

(6) Hammer flange screw

(7) Drop screw

(8) Hammer shank

(9) Repetition lever

(10) Hammer

(11) Back check

(12) Damper lever

(13) Damper tray

(14) Spoon

(15) Damper

(16) String

(17) Plate

(18) Agraffe

(19) Tuning pin

(20) Pin block

 

Upright Piano Action