Hi,
My concertina has for some time had a fault on one button. The valve is slow to close after playing a note - in both directions, so I must be a problem with the linkage/ seal getting to the reeds. Now, I have taken the end off and noted how the reeds and airflow across the reeds is controlled by thin flaps, but that isn't where the problem is. There are a couple of tiny screws into the frame where the main gubbins must be but I don't dare open them up without knowing a bit more. Can I dig further and make a repair, or would I enter tiger country?
Alternatively, anyone know a repairer accessible from SE London, or by post if further?