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Twenty years ago I was visiting my grandmother in Germany. She went down to the cellar and brought out her mandolin that she had bought sixty years ago. I started playing on it not know how the thing was meant to be tuned and she ended up giving it to me. I still have it and recently got it out again because I’ve started taking the mandolin more seriously. It actually had an absolutely lovely tone and a lovely action too. But the machine heads are seized up and I need pliers to tune the thing. Not sure how to sort that out.