I bought a used CASIO CTK-3400SK keyboard it makes a "click" sound when I release the keys, affecting the sound quality during recordings. I don't know how to solve this problem and
CASIO CTK 3400SK WITH ADAPTER (CTK3400SK/CTK-3400SK) I SEAMUSICIAN
Casio CTK-3400 Portable Keyboard Plus Stagg Stand | in Muswell Hill, London | Gumtree