Hi James,
You're right, once the key have been adjusted, they all sit at the same height.
To clean, you can use some sotf-tissue with alcool. If the metal is kind of rusted,
then you can use a verysoft sand-paper sheet to clean both the metalic bars and
springs. You can use a electricity continuity tester to check the contacts are correct.
Hope it help.
Laurent.Message
Re: CMI Music keyboard uneven keys
2003-11-01 by Laurent Lemaire