If your recorder’s block comes loose, you’re in trouble. But that doesn’t mean it’s helpless! On a typical wooden recorder, two different types of wood are used for the body and the block. You can try to repair the block yourself, but it is always recommended that you get your instrument to a technician immediately. They have all the tools and skills necessary to either save the original block or fit a new one. In other words, don’t try to repair a loose recorder block if you’re not sure how to.