[Bruno Travi]

MM

I have two Clavietta version, an old with curves keys and other more modern with the keys with more pronounced corners and more depth, the latter have best action key.
But the sound is very hard ! unlike the oldest what resonates easily.
Don’t see any air leakage, I dont understand what happens. ¿?

Any recommendation to hold nuts and springs? a special tool? I’m going crazy :S