Added ability to select and copy in self-signed sheets. (You can select and copy notes in your own signed sheets.)
Fixed a problem with sounds not getting attenuated based on distance.
Improved music GUI background to be a bit cleaner.
Music box sound category is now "record" (same as note blocks).
Added recipe discovery that works like the vanilla. (removed discovering all recipes at the start)
Fixed a naming problem that can happen with the advancements.