Labels:bulletin board | crt screen | paper | poster | sculpture | sewing kit | staple gun OCR: Action of Modern Concert Piano Hammer Evosution When piano key pressed, complex series 0 levers springs and escapements cause the hammer to strike the string and then fall back leaving the string resonate for as long the Ke held down. the key pressed harder, the hammer strikes the string more swiftly thereby producing louder sound 1720 1785 1800 1825 1870 Paperl Felt/ Hard Hard Hard Strinvg Leather Leatner Felt Felt Felt Hammer Hammer Rest Escapement Check Intermedsate Lever Grand Evobution Paper Hamme Intermediate
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