Only one key on my piano is giving me this problem: it stays stuck down and won't come back up if it is pressed too many times consecutively... the piano is from 1929 but was restored about twenty years ago.... what could it be??
P
Pianotuning
Reply 2 by Pianotuning
first of all you must check if the problem is in the key or in the mechanism.
try with one finger to hold the mechanism up and check if the key moves freely without impediments.
if the key moves freely then the problem is in the mechanism. perhaps excessive friction?