I have a little toy melodeon, seven buttons, in C. It is playable, but the bellows are very leaky.
I guess this is by design, to avoid damage - the seals on the edge don't meet/close in the corners. But I would like to improve the seal, it is hard work to play, even for fun. It has an air button
I was thinking of trying a flexible glue like Copydex or similar. Wondering if anyone has any better ideas?
PS I shall be internet-less for a couple of weeks, from Saturday, not being rude if I don't reply to anyone!