Reply To: Single note mystery
When you take the Hammond apart, the gaskets will not normally be damaged. This is generally true with current models of melodicas. The gasket may be displaced, but then needs simply to be carefully fitted back in place. But if a gasket has in fact been damaged, search the forums here for “gasket” or “gasket material” and you will find quite a few comments by several of us about gasket materials that can be used to create a replacement gasket. You will also find photos and descriptions of laying down new gasket material. I have had a lot of success with gasket tape, such as this type, which is sticky on one side:
