If you want to stall pulling the K7 apart at the moment I did a cheapy some time ago
A small strip of good quality Wite insulation tape on the damaged notes helps
The owner that caused that damaged says now he cuts his finger nails shorter now .
Once the groving of the note is done the damage is done
I wonder if organ keys are different to the kn 7000
I have an old broken down Technics EA1 in the shed .
Pity the EA1 organ doesn't have computer parts that our broken down K7 apparently needs----- Read Naughty KN7000 in the technics Forum ------.